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My $1 bill has no repeating decimals in its serial number
(sh.itjust.works)
This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
Just post some stuff and don't spam.
You might be able to get more than a dollar for it from a collector. There are numismatists that like interesting serial numbers. Probably won't get a lot since they aren't in order but who knows.