> This is actually not a million dollars in singles. It is over $1,000,000. The box was created with the wrong dimensions by the contractor, but they still decided to fill it, display it, and claim it is $1,000,000.
>
> Source: Tour Guide at the Chicago Fed
This thread is very informative on your chances of carrying off a heist stealing this cube.
Conclusion: Low, unless you're willing to take only a fraction of the face value.
Thinking through it though - you might be able to get away with spending the cash overseas, where it will take some time indeed for the money to be under scrutiny by banks to see if the serial numbers are out of circulation. There's then problem of getting the money there without anyone noticing, then there's the problem of what kind of characters you're going to be defrauding overseas.
All told - probably a better idea is to use all that cleverness to make a 1.5 million dollars the good old fashioned way: Spending a few years saying, "Nothing from my end" on Zoom calls.
>> you might be able to get away with spending the cash overseas
Outside the US is probably the last place you'd want to pass those bills off. Besides the logistical problem of physically getting an enormous stack of $1 bills past customs... there's so much counterfeit US currency out there that the level of caution is extremely high. Just spent a couple weeks in Costa Rica, and USD is not accepted anywhere if it is even slightly torn, worn, or out of date by more than a few years. Maybe you could tip with it, but that's about it.
> to see if the serial numbers are out of circulation.
Cash cannot be invalidated like this. It would ruin the value of all cash since you could no longer trust cash from anyone. Only damaged notes are taken out and replaced by the government.
Man how expensive was that contractor when your art installation requires $1M in cash and all the labor to assemble it, but you can't just tell the contractor to do a new box?
They can. But if the delivered box meets the ordered specifications they will ask for extra compensation to redo it.
That plus cost of shipping back and forth.
That plus any possible time pressure around opening of the exhibit.
That plus the fact that the Fed can obtain bank notes for less than their face value. (If they are for example voided bank notes. But they can also just order prop money beyond the first layer if they want to keep their museum work and their official business separate. Which very well might be easier for organisational, accounting and security reasons.)
Plus nobody wants to admit that they screwed up the box order.
All these factors would point towards just stuffing the box with more “banknotes” and pretending that all is well.
The phrase "good enough for government work" was actually not originally meant ironically. It was for Roosevelt's Works Progress Administration and it was an optimistic statement on the quality of the work.
(a) How do we know there isn't some hollow part inside the cube?
(b) Whovever hypothetically got that money would have 37% stolen by the government so they'd be left with about a million anyways. It's effectively a million.
Given that they are not contradicting, but supporting each other i would suggest to believe both. The blogpost says they counted the pile and it is more than a million dollar. The redit post says that a tour guide says it is more than a million dollar because the box was too big. That is the same information verified two different ways. Why do you feel the need to chose who you believe here?
Back in the late 70s my uncle was at an auto show in Chicago at the McCormick place. There was a VW filled with beer cans of some particular brand. You could submit your name and your guess of the number of cans of beer and whomever was closest to the actual count won the beer (but not the car). My uncle won.
How did he guess so well? He was there very early on and he noticed a stack of cardboard trays stacked up in the corner of the venue. He counted the number of trays, multiplied by 24, and submitted that number. :-)
EDIT: I forgot to mention he was a functional alcoholic who drank beer constantly. It is appropriate he won it, but I'm not sure if was good for him.
back in the day at when I worked at a Seattle company there was a contest where a vase with an oblate spheroid shape was filled with M&Ms was left in the kitchen with some instructions for submitting guesses as to the total.
I created a 3D model of the vase in Blender, used some Python to get the interior area, and then found a figure for the average volume of M&Ms to get a count.
my guess was off by about half, but was very close to many of the other engineers' numbers, to the point where we asked them to recount. the recount revealed I was closest and it turns out they had used a method other than counting for the original number (they weighed them or something... it was way off).
> For all we know, the middle is just air and crumpled-up old newspaper.
I think this is the answer. I suspect the exhibit designers had a cool idea for a display, did a rough estimate of the area needed and then commissioned the exhibit builders to make the big metal-framed cube. Either they made an error in their calculation or the innate variability in the size of stacks of used bills threw it off. It's also possible the exhibit designer simply decided a bigger cube which filled the floor to ceiling space would be a better visual. Which would be unfortunate because, personally, the exhibit concept I'm more interested in is "$1M dollars in $100 bills fits in this area" not "Here's $1M in bills." The first concept is mildly interesting while the second is just a stunt.
Regardless of the reason it's off, I think it's most likely there's only $1M of bills in the cube. The folks responsible for collecting and destroying used bills tend to be exacting in their auditing for obvious reasons. So when the exhibit designers got $1M in used bills approved and released, that's exactly how much they got. It also stands to reason that they'd design the cube a little bigger than their calculated area requirement to ensure at least $1M would fit (along with some method of padding the interior) - although >50% seems excessive for a variability margin, so I still think it was an aesthetic choice or calculation error. Of course, one could do a practical replication to verify the area required with $10,000 in $1 bills.
Regardless, it's an interesting observation and a cool counting program to help verify.
It could be that they measured a stack of bills sitting on a table, then did the math to make a metal frame to contain $1,000,000. But they didn't account for stacks compressing under the weight of higher stacks, and it wouldn't look as nice if the top part of the cube was empty.
Still, it does seem like it would be cheaper to rebuild the case than to add $500k to it. Maybe it's easy for the Fed to acquire more cash as long as it's guaranteed not to be spent.
It's the cost of paper not the dollar value. Also only the outermost bills need be real the rest could just be paper, or voided bills or whatever. But accounting can cover it. It's not gold or pennies where the currency costs what it is worth to make
> Maybe it's easy for the Fed to acquire more cash as long as it's guaranteed not to be spent.
The Fed doesn't acquire cash, it creates it. USD banknotes are liabilities of the Fed, but that concept only makes sense when somebody other than itself owns them.
It costs about $.032 to produce a 1 dollar note, so an extra 500000 new bills would be about $16k.
It could be even cheaper if these were old bills than needed to be pulled out of circulation. In that case they'ed be paying money to dispose of them anyways.
The compression of the bills under their own weight might account for the excessive margin - a lone $100 bundle, even compressed by hand before measuring, probably takes up more vertical space than the ones in the cube.
I think this is the most reasonable answer on the thread. As amusing as it is to see everyone come up with zany solutions, it is most likely something boring like this.
Rather than counting error it’s likely the ~1 ton weight of stacking bills like this would deform the lower sections and possibly stress the glass depending on thickness. So rather than random filler there may be internal structural bracing so the outside of the cube looks nice and neat.
Simplest way to double check is if top and bottom corners have the same bill density.
may be they started with a $1M and with time the bills weight compresses the bills, and they have periodically to add more to fill the newly forming emptiness. Kind of inflation.
> The folks responsible for collecting and destroying used bills tend to be exacting in their auditing for obvious reasons. So when the exhibit designers got $1M in used bills approved and released, that's exactly how much they got.
But who says that they didn't actually request $1.5M in used bills after doing the math of what it would take to make a cube. Or fill it up with $1M in used bills, and come back and make another request for $500k that also got approved...
Because going >50% over-budget isn't a good way to further anyone's career in exhibit design, engineering and construction.
I have a friend who works at a firm which specializes in engineering and constructing exhibits for museums and all kinds of public spaces. There's a whole industry ecosystem around doing this. They get brought in on contracts by design firms which specialize in permanent installation exhibits who get hired by the person responsible for exhibits at a museum or exhibit space. It's no different than most niche specialty industries. Even though it's comparatively small, there are still thousands of sites and hundreds of firms. People who do this specialize in it, develop long-term careers and have resumes they care about. Jobs for firms and people come by reputation and word of mouth. Delivering on time, on spec and on budget is crucial for survival. The facilities manager for this Fed building hired an exhibit space manager who developed a budget for this public tour project and then put it out to exhibit design firms for bids. The project was approved on a fixed budget and time frame. The overall budget the exhibit space manager submitted to the facilities manager certainly included the cost of the cash in the cube.
But the bigger reason no one was cavalier about just filling it up with $100 bills is that this exhibit is different because the exhibited artifact is of uniquely high-value (and unlike a Rembrandt, immediately spendable), so it probably had to have a security assessment and is very likely insured against loss (not just theft but fire/water damage etc). The cost of insuring and securing the exhibit was calculated before the budget was ever approved. Adding another 50% in cash would increase the insurance premium.
...I actually think you're being too nice. The exhibit implies that this is how big a cube of a million dollars would be. You can use it to get a sense of how much a million is.
If it's 50% too big, that's a serious mistake! They should, like, take down the exhibit until it's fixed. You can't just make one of the bars on a graph taller because it looks more impressive, or your pen slipped, or whatever else. This thing is inaccurate and they should fix it.
I think it's very unlikely there's real money in it. Most likely it's "real-ish" bills taken early from the production line without any of the security features, if not outright prop money - it's not like someone can inspect the printing or security features through the glass anyway. There's little upside in using real money, and plenty of downside.
Let's say the cube gets damaged and needs to go for a repair or rebuild - real money would require emptying it under supervision and counting the bills, where as fake money can just be sent as-is to the contractor, and any visible shortfall can be made up with more fake money upon return if needed).
Those downsides don't seem that bad to me. If something needed repair, they can bring a contractor on site, and certainly the Fed has cameras and police to monitor.
(In line with some other commenters, I'm more inclined to believe it's bills they've taken out of circulation than "almost finished" ones -- security features are built in throughout the process, not just an extra step at the end.)
I think those bills didn't go through decommissioning process for used bills.
It's much easier to just keep $1M on passive cash balance forever. Yes, they lose about $5k/month on lost interest rate, but a bank can afford it.
$5k/month or $60k/year is roughly 6% of annual conformal interest rate — is there any bank that will provide that much return in USA today? (There are investment funds which usually do, but there are no guarantees there)
I'm not sure where the original guy got the idea that the bills are uniform in the interior. Seems just as likely that the visible faces of the cube are "display" with an interior backing cube (say out of thin plywood) inside which the balance of the funds are dumped, either in pretty stacks or just how they land.
Yeah, there's no way they piled the cash into a square on the floor and then measured it and then had the box made based on the measurements. They had the box made FIRST based on rough calculations, being sure to over-estimate it's size on purpose, knowing they can fill the interior with cardboard boxes as needed to space things out.
Considering they handle and transport a lot of money, it's safe to assume they don't meet to make back of the envelope estimations concerning weight and volume.
> personally, the exhibit concept I'm more interested in is "$1M dollars in $100 bills fits in this area" not "Here's $1M in bills." The first concept is mildly interesting while the second is just a stunt.
They have that maybe 50 feet away. It fits in a briefcase. Also, $1 million in $20s.
Because we still care about assigning sensible priors to whatever we think is the truth? You can use this to "analogize" how the feds handle money, but if they were actually careful with the money but a bit misleading on the space $1m would take, that's a different and less egregious error. Ignoring the space of potential possible explanations to make your analogy stronger is just confirmation bias with additional steps.
Personally I'm a big fan of DotDotGoose [0]. Used by lots of people all over.
I discovered this when I had to test accuracy in a pose estimation model for a computer vision project involving crowds being counted by CCTV. Turns out in low-res imaging (even the best CCTV is a bit rubbish at long range due to wide angle lenses and so on), pose estimation models beat almost everything else for counting. Except... they're still not accurate.
I would spend hours going through hundreds of frames, counting people by hand, and then I'd compare with different pose models, and found they were always out, but they were out by the same amount.
Some models got confused by reflective surfaces, so would double count. Others would be out by ~20% every time for various environmental factors. The good thing about this is you could then easily show calibration. "OK, in that space, whatever the model says, half it, that's a better count", or "OK, in this image from this camera whatever the number the model says, increase/decrease it by 20%, and that'll be more accurate".
We ended up through human calibration being able to provide much more accurate "models" per camera than the models themselves.
It did mean counting hundreds of people per frame for hundreds of frames for dozens of cameras though... I had to abandon the trackpad for a mouse and just got settled in for a few days with DotDotGoose. Colleagues were surprised I had the patience for it. :-)
It's funny how all the comments seem to assume the conclusion is correct. I think it is far more likely that it is exactly $1M (plus or minus a couple of percent margin of error), and that the packing isn't uniform. It seems extremely unlikely to me that they would fuck it up so bad as to have $500k more in the box than claimed.
I also think it’s funny that so many comments assume they would have lax accounting for the extra $500K, or that the artists could have casually asked for another $500K of old bills to use as filler and the request would have been granted.
The Fed is extremely rigorous in tracking these things. It isn’t a couple guys in a room playing casually with millions of dollars. Even the retired bills are thoroughly monitored and tracked through their destruction.
Non uniform in what way? If all the money in the middle is jumbled up and 50% air that's still extremely misleading. And it's not far off the crumpled up newspaper the article threw in as a possibility.
The conclusion that something is off is still right in that case.
Or why does it even actually need to contain 1M anyway, just do your calculation for cube size, then cover the transparent faces. Filling the middle at all, nevermind completely and accurately, just seems pointless.
Goes against the whole premise of "ever wonder what a million dollars looks like?" They could have just created a million dollar bill and hung it on the wall
I mean the math given showing the size for an actual ~$1M cube is substantially smaller is pretty compelling. The author puts forward the explanation that there may be voids in the cube instead of an additional $500k, but that doesn't really address the problem that this isn't the right size for a $1M cube.
Maybe just my biased brain, but the title made it sound like they were half a million under, not over. In some way, this is how 1000 piece jigsaw puzzles will never be exactly 1000 pieces. As long as there's at least 1000, I think most people are fine, especially as an art piece. And of course as mentioned, there's the possibility that there's filler inside.
It would've been much worse if it was under though.
25x40 is rarely used because non square piece give a lot more info about placement and a 25 X 40 rectangle is almost twice as wide as it is tall. It’s rarely the right kind of aspect ratio.
Yeah, most jigsaw puzzles do not have precisely the number of pieces advertised. Here's an amusing video (by the channel Stand-up Maths) that does a deep dive into it. https://www.youtube.com/watch?v=vXWvptwoCl8
TLDR if you don't have a half-hour: puzzles are usually cut with the pieces on grids, and not all aspect ratios are conducive to that with all piece counts. Like, you might want a 2:3 shaped puzzle with 500 pieces, and 18x28=504 is close enough.
Kind of off-topic, but I've always thought a good way to suss out what sort of background somebody comes from is to ask them to visualise $1million dollars.
People from a "working class" background tend to see a massive pile of money, more middle class, a smaller pile, upper class maybe a cheque or a small stack of $100 bills or a bank transfer.
It's maybe one of the weirdest parts of the JBR ransom note (getting really off-topic now), "$118,000 dollars be placed into an "adequately sized attaché" consisting of $100,000 in $100 dollar bills and $18,000 in $20 dollar bills."
That would take up a really small amount of space, but if you're never seen that amount of money you might not know that (especially in 1996, pre-internet)
Separate comment so you can separately downvote/flag me:
Why, OP, why? How much self-awareness does it really take to realize JBR is a non-standard acronym people won't recognize? It almost feels like a superpower that I take an extra half-second to think about what jargon the average person needs to have defined.
IDK, a strap of $100 bills is $10k, so $1M would be 100 of them. Seems sizable. Looks like a strap is about .43 inches tall, so that would make your $1M about 3 and a half feet high or more than a meter tall for the non-imperial afflicted amongst us.
There are additional stacks hidden by the aluminum framing. Everything is flush against the glass so there are a few more inches on each face not counted in the 102 figure.
I was curious and looked and yes, there are absolutely bills that seem to go into the framing. It's not a solid aluminum bar it looks L shaped in person.
I'm guessing that is an illusion due to refraction through thick (plexi)glass.
Otherwise, if the bills really are where they appear, then there would have to be some partial (cut) bills along the edges for everything to line up properly.
Readit News
> This is actually not a million dollars in singles. It is over $1,000,000. The box was created with the wrong dimensions by the contractor, but they still decided to fill it, display it, and claim it is $1,000,000. > > Source: Tour Guide at the Chicago Fed
[0] https://old.reddit.com/r/pics/comments/2f9sp7/one_million_do...
Conclusion: Low, unless you're willing to take only a fraction of the face value.
Thinking through it though - you might be able to get away with spending the cash overseas, where it will take some time indeed for the money to be under scrutiny by banks to see if the serial numbers are out of circulation. There's then problem of getting the money there without anyone noticing, then there's the problem of what kind of characters you're going to be defrauding overseas.
All told - probably a better idea is to use all that cleverness to make a 1.5 million dollars the good old fashioned way: Spending a few years saying, "Nothing from my end" on Zoom calls.
Outside the US is probably the last place you'd want to pass those bills off. Besides the logistical problem of physically getting an enormous stack of $1 bills past customs... there's so much counterfeit US currency out there that the level of caution is extremely high. Just spent a couple weeks in Costa Rica, and USD is not accepted anywhere if it is even slightly torn, worn, or out of date by more than a few years. Maybe you could tip with it, but that's about it.
https://youtu.be/jgYYOUC10aM?si=YuTT_hR7y9t74mAQ
Cash cannot be invalidated like this. It would ruin the value of all cash since you could no longer trust cash from anyone. Only damaged notes are taken out and replaced by the government.
They can. But if the delivered box meets the ordered specifications they will ask for extra compensation to redo it.
That plus cost of shipping back and forth.
That plus any possible time pressure around opening of the exhibit.
That plus the fact that the Fed can obtain bank notes for less than their face value. (If they are for example voided bank notes. But they can also just order prop money beyond the first layer if they want to keep their museum work and their official business separate. Which very well might be easier for organisational, accounting and security reasons.)
Plus nobody wants to admit that they screwed up the box order.
All these factors would point towards just stuffing the box with more “banknotes” and pretending that all is well.
And I'm glad you didn't find it because that lead to a great post.
As we say in my family: "close enough for government work!"
This sort of implies that it was cheaper to just go with he extra cash needed than to do a cube with the right dimensions?
But then again it's the Fed, so they probably just printed more money. (Which also costs money, though?)
(b) Whovever hypothetically got that money would have 37% stolen by the government so they'd be left with about a million anyways. It's effectively a million.
How did he guess so well? He was there very early on and he noticed a stack of cardboard trays stacked up in the corner of the venue. He counted the number of trays, multiplied by 24, and submitted that number. :-)
EDIT: I forgot to mention he was a functional alcoholic who drank beer constantly. It is appropriate he won it, but I'm not sure if was good for him.
I created a 3D model of the vase in Blender, used some Python to get the interior area, and then found a figure for the average volume of M&Ms to get a count.
my guess was off by about half, but was very close to many of the other engineers' numbers, to the point where we asked them to recount. the recount revealed I was closest and it turns out they had used a method other than counting for the original number (they weighed them or something... it was way off).
I think this is the answer. I suspect the exhibit designers had a cool idea for a display, did a rough estimate of the area needed and then commissioned the exhibit builders to make the big metal-framed cube. Either they made an error in their calculation or the innate variability in the size of stacks of used bills threw it off. It's also possible the exhibit designer simply decided a bigger cube which filled the floor to ceiling space would be a better visual. Which would be unfortunate because, personally, the exhibit concept I'm more interested in is "$1M dollars in $100 bills fits in this area" not "Here's $1M in bills." The first concept is mildly interesting while the second is just a stunt.
Regardless of the reason it's off, I think it's most likely there's only $1M of bills in the cube. The folks responsible for collecting and destroying used bills tend to be exacting in their auditing for obvious reasons. So when the exhibit designers got $1M in used bills approved and released, that's exactly how much they got. It also stands to reason that they'd design the cube a little bigger than their calculated area requirement to ensure at least $1M would fit (along with some method of padding the interior) - although >50% seems excessive for a variability margin, so I still think it was an aesthetic choice or calculation error. Of course, one could do a practical replication to verify the area required with $10,000 in $1 bills.
Regardless, it's an interesting observation and a cool counting program to help verify.
Still, it does seem like it would be cheaper to rebuild the case than to add $500k to it. Maybe it's easy for the Fed to acquire more cash as long as it's guaranteed not to be spent.
The Fed doesn't acquire cash, it creates it. USD banknotes are liabilities of the Fed, but that concept only makes sense when somebody other than itself owns them.
It could be even cheaper if these were old bills than needed to be pulled out of circulation. In that case they'ed be paying money to dispose of them anyways.
Based on Fed policy since 2007, they may be happy to hand out cash especially if it's going to be spent.
"Money printer go brrr" and all that...
Here's $1,000,000 in $50 notes at the Reserve Bank of New Zealand Museum: https://fastly.4sqi.net/img/general/600x600/2817090_qnRbbX_q...
* AUD 20c was an identical size and same embossed image of the Queen, but a platypus on the reverse.
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~ Vincent LaGuardia Gambini
Simplest way to double check is if top and bottom corners have the same bill density.
But who says that they didn't actually request $1.5M in used bills after doing the math of what it would take to make a cube. Or fill it up with $1M in used bills, and come back and make another request for $500k that also got approved...
I have a friend who works at a firm which specializes in engineering and constructing exhibits for museums and all kinds of public spaces. There's a whole industry ecosystem around doing this. They get brought in on contracts by design firms which specialize in permanent installation exhibits who get hired by the person responsible for exhibits at a museum or exhibit space. It's no different than most niche specialty industries. Even though it's comparatively small, there are still thousands of sites and hundreds of firms. People who do this specialize in it, develop long-term careers and have resumes they care about. Jobs for firms and people come by reputation and word of mouth. Delivering on time, on spec and on budget is crucial for survival. The facilities manager for this Fed building hired an exhibit space manager who developed a budget for this public tour project and then put it out to exhibit design firms for bids. The project was approved on a fixed budget and time frame. The overall budget the exhibit space manager submitted to the facilities manager certainly included the cost of the cash in the cube.
But the bigger reason no one was cavalier about just filling it up with $100 bills is that this exhibit is different because the exhibited artifact is of uniquely high-value (and unlike a Rembrandt, immediately spendable), so it probably had to have a security assessment and is very likely insured against loss (not just theft but fire/water damage etc). The cost of insuring and securing the exhibit was calculated before the budget was ever approved. Adding another 50% in cash would increase the insurance premium.
If it's 50% too big, that's a serious mistake! They should, like, take down the exhibit until it's fixed. You can't just make one of the bars on a graph taller because it looks more impressive, or your pen slipped, or whatever else. This thing is inaccurate and they should fix it.
Let's say the cube gets damaged and needs to go for a repair or rebuild - real money would require emptying it under supervision and counting the bills, where as fake money can just be sent as-is to the contractor, and any visible shortfall can be made up with more fake money upon return if needed).
(In line with some other commenters, I'm more inclined to believe it's bills they've taken out of circulation than "almost finished" ones -- security features are built in throughout the process, not just an extra step at the end.)
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They have that maybe 50 feet away. It fits in a briefcase. Also, $1 million in $20s.
Calvin Liang: "Ackshually ..."
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I think it’s better served to use this as an analogy of how the federal government handles money.
Non-snark: Because it's fun to theorize.
I discovered this when I had to test accuracy in a pose estimation model for a computer vision project involving crowds being counted by CCTV. Turns out in low-res imaging (even the best CCTV is a bit rubbish at long range due to wide angle lenses and so on), pose estimation models beat almost everything else for counting. Except... they're still not accurate.
I would spend hours going through hundreds of frames, counting people by hand, and then I'd compare with different pose models, and found they were always out, but they were out by the same amount.
Some models got confused by reflective surfaces, so would double count. Others would be out by ~20% every time for various environmental factors. The good thing about this is you could then easily show calibration. "OK, in that space, whatever the model says, half it, that's a better count", or "OK, in this image from this camera whatever the number the model says, increase/decrease it by 20%, and that'll be more accurate".
We ended up through human calibration being able to provide much more accurate "models" per camera than the models themselves.
It did mean counting hundreds of people per frame for hundreds of frames for dozens of cameras though... I had to abandon the trackpad for a mouse and just got settled in for a few days with DotDotGoose. Colleagues were surprised I had the patience for it. :-)
https://biodiversityinformatics.amnh.org/open_source/dotdotg...
The Fed is extremely rigorous in tracking these things. It isn’t a couple guys in a room playing casually with millions of dollars. Even the retired bills are thoroughly monitored and tracked through their destruction.
He then named it “take the money and run” and showcased what amounted to an empty frame.
The conclusion that something is off is still right in that case.
Dead Comment
It would've been much worse if it was under though.
What??
TLDR if you don't have a half-hour: puzzles are usually cut with the pieces on grids, and not all aspect ratios are conducive to that with all piece counts. Like, you might want a 2:3 shaped puzzle with 500 pieces, and 18x28=504 is close enough.
People from a "working class" background tend to see a massive pile of money, more middle class, a smaller pile, upper class maybe a cheque or a small stack of $100 bills or a bank transfer.
It's maybe one of the weirdest parts of the JBR ransom note (getting really off-topic now), "$118,000 dollars be placed into an "adequately sized attaché" consisting of $100,000 in $100 dollar bills and $18,000 in $20 dollar bills."
That would take up a really small amount of space, but if you're never seen that amount of money you might not know that (especially in 1996, pre-internet)
https://en.wikipedia.org/w/index.php?title=Killing_of_JonBen...
Why, OP, why? How much self-awareness does it really take to realize JBR is a non-standard acronym people won't recognize? It almost feels like a superpower that I take an extra half-second to think about what jargon the average person needs to have defined.
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Otherwise, if the bills really are where they appear, then there would have to be some partial (cut) bills along the edges for everything to line up properly.
The OP says it totals $1.5M ... and extra $0.5M