On Sun, 22 Jun 2008 20:58:52 -0500, Stephen Sprunk
wrote in misc.transport.urban-transit:

Charles Ellson wrote:
Aren't US banknotes also all the same size thus making it easier to
accidentally sandwich a high value note in amongst low value notes ?

They're all the same size, yes. Folks do occasionally make mistakes,
but that's not a major concern (other than for the blind) in bill design
compared to anti-counterfeiting features.

But, of course, the Fed was told by the courts that their current
methods are a violation of the law because they don't take the blind
into account.

One of the old tricks was to take a $1 bill, bleach the ink off, and
print a $100 bill's faces on it. This got around the checks specific to
the material used, since all bills until recently had identical cloth.
Newer bills have security features that prevent that -- if cashiers
bother looking for them.

S