1960's I GOT RHYTHM (Cocktail Wine For Counter Swingers) Pinback Button.  Writing on side reads United Vinters, Inc. San Francisco, Calif.  Button is approx. 1-3/8" inches in diameter.  Colors are bright and vivid.  Came from my personal collection that has been in storage for many decades.  Button is in very good condition with some signs of age.....please refer to photos to get a good look.   Bid confidently with my 100% feedback rating. I will combine shipping.