Today I received an interesting dollar bill in my change.
It took me a few double-takes to realize it wasn't what I thought it might be, a radar note.

The number is:

A 66799667 D series 2003 from Boston.

Not that it really matters, but at least it is a three digit banknote.

corky

It's not quite a radar but it's close. The bad part is, because it's not a perfect radar it'll probably only fetch an extra dollar at most. I only keep notes like that if they are basically CU.