First time this happened to me. It all started in the a.m. when the young dunkin donuts girl gave me change. She said "does this look counterfeit to you?" I said no, it's just old. It's from the 1950s series. Twice later today i tried to buy shit with it and it was rejected both times because they're is no bar in it or some marker doesn't do whatever on it. It is legal tender and legally should be accepted everywhere in the United states. Thank you.