Is there a website to check how many notes were printed in a certain block or something to show which blocks are rare like the star note look up website?
USpapermoney.info lists the blocks for the FRN's. There is a "Printer Friendly" list on one of the pages that starts with the $1 Silver Certificates. Runs are different and some need to be calculated. Especially Star-runs.
Not an attempt to take from this thread but what is the site to check for stolen bills. My friend found one in South Daytona that came from a dye explosion.
