This is a set of four vintage Frankoma Pottery mugs, each with a capacity of 8oz and a height of 4". The mugs are glazed in red, white, and blue, and feature an Uncle Sam pattern. They were manufactured in 1976 to commemorate the US Centennial. The mugs are made of clay and ceramic, and were produced using the art pottery technique. They are unisex adult mugs and are part of the Frankoma product line.