OtbS said:

People could put a whack of money with their collections of radars and old bills for sure

indeed they could and while it is theoretically possible to add these old banknotes to the database, they really don't belong there. most of those notes in collections are likely to STAY in collections and not really be released for tracking (circulated) -- they usually are not stamped, because if you do, you essentially make them worthless to collectors. if you are just looking to create a record of your collected notes, you really ought to have a better accounting system for them. :)