This 1981 $50 bill is a star note with a low serial number in the K640 run size from San Francisco, California. It is a great addition to any coin and paper money collection. The bill is circulated and ungraded, but uncertified. This Federal Reserve Note has the potential to be a rare and valuable find for any collector. The denomination, year, and location make it a unique piece of history that is worth adding to your collection.