I've come across a possible US $10,000 bill, and I know they are extremely rare and probably equally difficult to authenticate. According to the research I've done it seems most of the known to survive bills came from the Binion Casino hoard. It seems there are only about 336 known to exist so I assume finding an authentic one is a treasure indeed.
So, I was at the store the other day picking up a few items I needed. I paid for everything and received my change, a couple of bucks. I started to put the money in my wallet when I noticed one of the bills felt odd. Being a good numismatist, I checked it out further. To my surprise it turned out to be a Silver Certificate. A nice old Series 1935A. What a surprise. Then it got even better. On the back was a bunch of writing. It turned out to be, I think, 3 signatures along with the date they were signed. To help me and everyone else out, it also included the words "Short Snorter" on the edge. I actually received a Silver Certificate short snorter in my change. Talk about clean living paying off! A short snorter is a banknote that was circulated around during World War II that people traveling together signed. Each person received their own note. The practice is believed to be started in the 1920's by Alaskan Bush pilots that caught on in the military. With everyone in the group having their own copy, it was all good. Later, if you happened to run into your fellow snorter all you had to do was call him or her out for it. If he or she failed to produce his copy, he or she owed you a buck or a drink. Many famous people have signed some of these and they are readily collected. I hope you enjoyed this story of numismatic luck. I most likely should have mentioned the store was my coin dealer. He likes to do things like that to me in my change. See if I'm on my toes. Yes, he did let me keep it. I have collected quite a bit of change from him, over the years that I can't spend! Please feel free to comment. Thanks for your time.