It's the equivalent of a chopmark used on silver coins in the old days to validate their authenticity. Chopmarks are very common on $100 notes. Here is a contemporary 1990's example: They are often done abroad at currency exchanges or international currency depositories. Nearly 80% of $100 notes in circulation are held abroad. Some of these eventually make their way stateside, leaving bills to turn up domestically with these mysterious stamps. Arabic chopmarks from the Middle East are also fairly common on $100 notes:
Looks like the RC Cola logo. I don't know how often y'all see it in other parts of the country (and world), but here in the Deep South it's fairly common. It originated here in Georgia, just like Coca-Cola.
You beat me to it. That's the very first thing I thought of when I saw the image. My most favorite beverage when I was a kid and still drink it every once in a while as an adult I actually got a bottle of it chilling in my refrigerator at home right now. It's Friday and clear skies so I'll probably get out the telescope tonight and crack open that bottle of RC while looking at Jupiter and Saturn.
I saw the same thing. You beat me to the reply. Looks like a bank, or other, stamp. Not from the printer.
it was stamped onto the bill, No idea why people do it but it's common so the only thing I can think of is businesses or banks or casinos or something do it after they've checked a bill and determined it's genuine and they mark it with a stamp so they don't have to check it again and again while it's in their possession, they know they've check that one when it came to them.