# How do blind people tell the difference on US Dollar bills? **URL:** \ **Category:** Factual Questions\ **Created:** [June 11, 2009, 3:10pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449 "2009-06-11T15:10:51Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![WormTheRed](https://avatars.discourse-cdn.com/v4/letter/w/bbe5ce/32.png) [@WormTheRed](https://boards.straightdope.com/u/WormTheRed)\ **Post date:** [June 11, 2009, 3:10pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/1 "2009-06-11T15:10:51Z")
My brother is going to the US tomorrow and exchanged some money today. When he came home he asked me (the allknowning older brother): All US bills (at least 1-50) are the same size, how do blind people tell the difference? Swedish bills (and Euros, I seem to remember) are all of different sizes so you can tell what you have by feeling it. But how do you do it in the US? ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [June 11, 2009, 3:20pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/2 "2009-06-11T15:20:55Z")
In the Leonard Gershe play (and movie) **Butterflies Are Free** , blind Don Baker explains that he folds them differently in his wallet – ones aren’t folded, fives folded once, tens twice. “What about twenties?” asks girlfriend Jill Tanner. “Who carries twenties?” replies Baker. Which shows you how old this play is. I have no idea how he tells what the bills he receives are. I did once see a TV report about a “reading” device for the blind that basically consisted on a camera, some circuitry, and a speaker. It transformed the value of the reflected light into tones. You could easily identify a five dollar bill by the modulaytion as you ran the device over the columns of the Lincoln Memorial on the back. But I doubt if that device is widely used today. ---
**Author:** ![This\_Just\_In\_2](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@This\_Just\_In\_2](https://boards.straightdope.com/u/This_Just_In_2)\ **Post date:** [June 11, 2009, 3:24pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/3 "2009-06-11T15:24:35Z")
Canadian bills are the same size but have tactile features (like braille) indented onto one corner of the bill. Seems like that would be a good option for the US too. > **[Canadian currency tactile feature](https://en.wikipedia.org/wiki/Canadian_currency_tactile_feature)** > > The Canadian currency tactile feature is a feature on the Canadian Journey and Frontier series of Canadian banknotes to aid people who are visually impaired to identify the notes. The feature indicates the banknote denomination in the upper left corner of the face side of the bill using a series of raised dots. It was suggested by Bruno Thériault, an administrator for the Canadian National Institute for the Blind, and designed by Susan Lederman, a professor of psychology at Queen's University. Al... ---
**Author:** ![gotpasswords](https://avatars.discourse-cdn.com/v4/letter/g/c57346/32.png) [@gotpasswords](https://boards.straightdope.com/u/gotpasswords)\ **Post date:** [June 11, 2009, 3:48pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/4 "2009-06-11T15:48:30Z")
One folding scheme I’ve encountered is: Ones - unfolded Fives - folded once in the usual way to a nearly square shape Tens - Folded once lengthwise into a long strip Twenties - Folded as if a five and a ten so it’s half the height and width. To start this process, the blind person needs a little help from a bank teller or friend. For people with “low” vision, the newer bank notes have their value printed in large, plain numbers. ---
**Author:** ![WormTheRed](https://avatars.discourse-cdn.com/v4/letter/w/bbe5ce/32.png) [@WormTheRed](https://boards.straightdope.com/u/WormTheRed)\ **Post date:** [June 11, 2009, 3:59pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/5 "2009-06-11T15:59:55Z")
Seems like it would very easy for an individual of a non-moral persuasion to shortchange them when they’re shopping. After all, you’d have no way of knowing what you get in exchange. ---
**Author:** ![Really\_Not\_All\_That\_Bright](https://avatars.discourse-cdn.com/v4/letter/r/e8c25b/32.png) [@Really\_Not\_All\_That\_Bright](https://boards.straightdope.com/u/Really_Not_All_That_Bright)\ **Post date:** [June 11, 2009, 4:04pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/6 "2009-06-11T16:04:32Z")
> [@WormTheRed](#): > > Seems like it would very easy for an individual of a non-moral persuasion to shortchange them when they’re shopping. After all, you’d have no way of knowing what you get in exchange. American guide dogs can differentiate between different currency denominations and have very sharp teeth. (;)) ---
**Author:** ![WormTheRed](https://avatars.discourse-cdn.com/v4/letter/w/bbe5ce/32.png) [@WormTheRed](https://boards.straightdope.com/u/WormTheRed)\ **Post date:** [June 11, 2009, 4:53pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/7 "2009-06-11T16:53:11Z")
> [@Really\_Not\_All\_That\_Bright](#): > > American guide dogs can differentiate between different currency denominations and have very sharp teeth. So, basically, they’re screwed? Or at least, at the mercy of the goodness of strangers. Damn, that’s harsh. ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [June 11, 2009, 5:02pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/8 "2009-06-11T17:02:52Z")
Evidently there are bill readers for the blind in use, descendents of the one I mention above, and the Treasury is lookinng into making bills identifiable to the blind: > **[Find How-to instructions, Inspiration and Other Ideas to Try](https://suite101.com/)** > > Suite101 is the go-to source for how-tos, home inspiration, DIY, and other ideas to try. Our team of experts is here to help you improve your home and life. Let's explore our site below: Home Improvement Discover expert home improvement instructions,... > [@](#): > > Many blind people do use bill-reading machines, such as the Note Teller 2 from Brytech, which costs about $300 and is the size of an iPhone. However, these machines have an 80 percent accuracy rate, and require the user to enter the bills properly. Like vending machines, a bill reader will reject bills that are too old or wrinkled. ---
**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\ **Post date:** [June 11, 2009, 5:26pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/9 "2009-06-11T17:26:41Z")
This has to be one of the greatest reasons for the US dropping the $1 and $2 bills and introducing $1 and $2 coins that I’ve ever heard. ---
**Author:** ![bordelond](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bordelond/32/150_2.png) [@bordelond](https://boards.straightdope.com/u/bordelond)\ **Post date:** [June 11, 2009, 5:28pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/10 "2009-06-11T17:28:49Z")
> [@WormTheRed](#): > > Seems like it would very easy for an individual of a non-moral persuasion to shortchange them when they’re shopping. After all, you’d have no way of knowing what you get in exchange. I would bet that 99 times out of 100, the prevalence of debit-card transactions has mitigated the risk greatly. How this kind of stuff was handled 30-40 years ago, I don’t know. ---
**Author:** ![WormTheRed](https://avatars.discourse-cdn.com/v4/letter/w/bbe5ce/32.png) [@WormTheRed](https://boards.straightdope.com/u/WormTheRed)\ **Post date:** [June 11, 2009, 5:33pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/11 "2009-06-11T17:33:31Z")
> [@Sunspace](#): > > This has to be one of the greatest reasons for the US dropping the $1 and $2 bills and introducing $1 and $2 coins that I’ve ever heard. Or just making them different sizes 🙂 > [@bordelond](#): > > I would bet that 99 times out of 100, the prevalence of debit-card transactions has mitigated the risk greatly. How this kind of stuff was handled 30-40 years ago, I don’t know. Yeah, I bet blind people use cards more than others, but then you’re left with the problem of reading the slip 🙂 (yes, for some reason I’m feeling very conspiratorical today) ---
**Author:** ![garygnu](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/garygnu/32/2924_2.png) [@garygnu](https://boards.straightdope.com/u/garygnu)\ **Post date:** [June 11, 2009, 5:38pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/12 "2009-06-11T17:38:24Z")
There are scenes in the Ray Charles bio-pic, _Ray_, that have him insisting on being paid with singles during his early career. IIRC, he got screwed early on with 1s said to be larger bills. ---
**Author:** ![Spectre\_of\_Pithecanthropus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/spectre_of_pithecanthropus/32/12343_2.png) [@Spectre\_of\_Pithecanthropus](https://boards.straightdope.com/u/Spectre_of_Pithecanthropus)\ **Post date:** [June 11, 2009, 9:34pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/13 "2009-06-11T21:34:19Z")
The newer fives, tens, and twenties also have distinctive colors on the front, which may possibly help those who can see a little, but the colors aren’t very bold or distinct. They haven’t entirely supplanted the old bills yet, and I can’t remember off the top of my head what the colors are. BTW unlike just about every other country on Earth, the government provides information and educational material about the currency through the website of the United States Treasury, rather than through the central bank’s website. By contrast, the website of the Federal Reserve system explains how monetary policy works, but doesn’t tell you about the physical characteristics of the notes they issue. Getting back to the issues faced by blind people, it is difficult for them and I don’t know why they haven’t been better provided for in this regard. There are only three or four denominations to worry about, though. The twenty dollar bill is the only denomination dispensed by nearly all ATMs, so that denomination is not going away any time soon. Many small business will not handle hundreds and fifties–and people tend to use debit or credit cards anyway, so those denominations are rarely used. That leaves only ones, fives, tens, and twenties. Of those four, the ten is by far the least circulated, and may be in the process of disappearing. Why this is I’m not sure, but it’s no major inconvenience to carry twice the number of fives, and business that hand out change may be favoring fives in their currency orders from banks. Ray Charles, when he was starting out as a professional musician in the 1940s, used to insist on being paid in singles only, but obviously that’s not practical today. ---
**Author:** ![foolsguinea](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/foolsguinea/32/14751_2.png) [@foolsguinea](https://boards.straightdope.com/u/foolsguinea)\ **Post date:** [June 11, 2009, 9:38pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/14 "2009-06-11T21:38:32Z")
> [@Sunspace](#): > > This has to be one of the greatest reasons for the US dropping the $1 and $2 bills and introducing $1 and $2 coins that I’ve ever heard. I’ve thought that for, oh, longer than I’ve been on the SDMB, surely. ---
**Author:** ![garygnu](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/garygnu/32/2924_2.png) [@garygnu](https://boards.straightdope.com/u/garygnu)\ **Post date:** [June 11, 2009, 9:45pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/15 "2009-06-11T21:45:10Z")
> [@Spectre\_of\_Pithecanthropus](#): > > …BTW unlike just about every other country on Earth, the government provides information and educational material about the currency through the website of the United States Treasury, rather than through the central bank’s website. By contrast, the website of the Federal Reserve system explains how monetary policy works, but doesn’t tell you about the physical characteristics of the notes they issue… The notes may say “Federal Reserve Note” but they don’t actually _make_ the bills. Hell, the Treasury doesn’t even make the bills, it’s the [Bureau of Engraving and Printing](http://www.moneyfactory.gov/), while the US Mint makes the coins. Total clusterf\*ck. ---
**Author:** ![Serenata67](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/serenata67/32/10646_2.png) [@Serenata67](https://boards.straightdope.com/u/Serenata67)\ **Post date:** [June 11, 2009, 9:59pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/16 "2009-06-11T21:59:25Z")
> [@WormTheRed](#): > > Seems like it would very easy for an individual of a non-moral persuasion to shortchange them when they’re shopping. After all, you’d have no way of knowing what you get in exchange. I saw a thing on 20/20 where they set up a stunt with a blind actor and an actor playing a cashier at a deli. The actor was told to be very rude to the blind person and intentionally short change the blind person. It was amazing how many ordinary citizens actually spoke up for the blind person when they saw them being shortchanged. It gives me hope for the human race (which, IMHO, is pretty much screwed). ---
**Author:** ![ChrisBooth12](https://avatars.discourse-cdn.com/v4/letter/c/e95f7d/32.png) [@ChrisBooth12](https://boards.straightdope.com/u/ChrisBooth12)\ **Post date:** [June 11, 2009, 10:07pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/17 "2009-06-11T22:07:55Z")
How often are blind people out buying something buy themselves? ---
**Author:** ![ZenBeam](https://avatars.discourse-cdn.com/v4/letter/z/3ab097/32.png) [@ZenBeam](https://boards.straightdope.com/u/ZenBeam)\ **Post date:** [June 11, 2009, 11:00pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/18 "2009-06-11T23:00:56Z")
I’ve wondered for a few years now whether they’d be able to tell the denominations apart based on where the security strip is located. It’ in a different place on each denomination, and feelable by me, at least on new bills. ---
**Author:** ![Walloon](https://avatars.discourse-cdn.com/v4/letter/w/fbc32d/32.png) [@Walloon](https://boards.straightdope.com/u/Walloon)\ **Post date:** [June 11, 2009, 11:05pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/19 "2009-06-11T23:05:44Z")
> [@garygnu](#): > > The notes may say “Federal Reserve Note” but they don’t actually _make_ the bills. Hell, the Treasury doesn’t even make the bills, it’s the [Bureau of Engraving and Printing](http://www.moneyfactory.gov/) And the Bureau of Engraving and Printing is part of … yes, the Treasury Department. ---
**Author:** ![This\_Just\_In\_2](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@This\_Just\_In\_2](https://boards.straightdope.com/u/This_Just_In_2)\ **Post date:** [June 11, 2009, 11:07pm UTC](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449/20 "2009-06-11T23:07:11Z")
> [@ChrisBooth12](#): > > How often are blind people out buying something buy themselves? Not very often since they’d get screwed over. But if I were a blind person I think I would want to be able to go out and buy something if I wanted to, without having to take a leap of faith with every transaction. It would be so easy for the Fed’s to make colorful money, indented paper, different sized paper. Most other countries do these things. I’ve seen people who can see well mistake an American 1 for a 10 just because they look the same. In other countries you don’t have to _read_ a bill to tell what it is, you just look at it and see what it is based on colour and/or shape. [Next page](https://boards.straightdope.com/t/how-do-blind-people-tell-the-difference-on-us-dollar-bills/499449.md?page=2)