Saw a similar post on the coin side so i thought i would bring this over to the currency folks, here are few of my sample notes from PCGS, though they really dont have a common thread though two our American currency and one is a foreign job !
A scan of one of the sample notes I gave away. This one was given to me by the owner of CGA grading , John Spinelli, when we met at the 2012 FUN coin/currency show in Tampa, way back in 2012.
Bought this a few years back. Beautiful coloration on early US notes. I submitted bill to PCGSC, specifically asking them to make notation re: radar serial. Nope! They don't do that.