VINTAGE BANDANA PRINT SET OF 6 GLASS TUMBLERS

A set of 6 glass tumblers with a fabulous wrapped bandana print. They are a clear glass with the red bandana with black and white designs. They have a heavy concave bottom and measure 5.5" in height and a diameter of 2.75" at the top. I believe these are a Irene Pasinski design from the Washington Glass Co. But I can't find a signature. They are in very good condition without chips, cracks or fading and are from the late 1960's. I would handwash these to keep the colors from fading in a dishwasher. A great set for a barbecue or a western themed gathering! Thanks for looking!