A couple of years ago I use to visit a bank note forum and quite often the topic of "birthday bills " would come up. It had to do with finding a date in the serial number, 19650606 might be june 6th 1965. However I don't recall what order the numbers had to be in,day/ month/year or year /month/day.etc
I use to keep the ones I found but then decided that the only ones who might be interested in them would be people actually born on these dates so I put them back into circulation.
does anyone collect these?