> The small piles would have 1000 notes in them, which is easy to check in a day.
By the time you could even buy an 8-bit home computer for couple hundred dollars, store all the serial numbers on a floppy and simply search through them once per day
By the time you could even buy an 8-bit home computer for couple hundred dollars, store all the serial numbers on a floppy and simply search through them once per day