The white ribbon pattern is reminiscent of Steuben, but Steuben stopped using color early on and only had clear glass, with some using white swirls; therefore, I'm not sure. It seems the base has a slight indentation from a production tool, and Steuben weights were flawless. But, that design screams Steuben and it is well-known that glassmakers at Steuben in the 30s, 40s, 50s, 60s were allowed to have "fun" after work.