The US government has come out with a new design for the $100 bill, one that incorporates even more security features. There’s a blue strip woven into the bill with bells that turn into “100”s as you move the bill one direction, and moving bells/100s as you shift the bill in another direction. The bill also has an inkwell with a bell inside that changes color as you move the bill, such that it seems to appear and disappear. Really fancy stuff.
The new bills have not been officially released. This is because there is a production problem that didn’t show up in the test phase. Some of the bills have creases in them and are unusable. They only discovered this after printing a billion of the new notes, which (at this time) will all have to be manually checked before being released. They’re trying to find a way to automate the checking process, for obvious reasons.
And on a side note, have you ever wondered how many $100 bills are printed each year? In the last fiscal year (October 1st, 2011 to September 30th, 2012) the US government printed 3 billion of them.
Thanks to Josh for this topic and the links.