1. Those bumps doesn’t last very long. I’ve got 3 $50s in my wallet right now. One is crisp and so are the bumps. Another is used, but I can still feel them. The third looks and feels identical to the second, but there’s not even a hint of braille on it. Can’t feel it or even see where it used to be. Oh and it’s not braille per se. (It doesn’t actually read as a number) A $50 has 4 blocks of bumps starting in the top right corner. A $20 has the blocks in the same place, but only 3 of them. If one of the blocks of numbers is flattened, then the bill would seem to be the next lowest denomination.

      The durability might improve when our bills switch over to polymer. I’ll let you know when the new $100s come out in a couple months.

      There is an alternative though. The CNIB issues a little box that reads the bill much like a vending machine, and tells you what it is. Interestingly enough it doesn’t read the black bars near the serial numbers, rather it reads the short edge of the bill.

  1. There was a ruling a few years ago that found US paper money discriminatory. I can’t find any news stories about it after 2008, though, so who knows when they’ll actually do anything about it.

  2. Much harder to short change the blind in australia as the notes are different sized. $5 are the shortest ones and there is a different shaped clear (but more importantly) smooth window in each note… and at the moment worth more than a USD too!

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