This is a set of six Pyrex Terra pattern handleless mugs or tumblers. Terra is a rare Pyrex pattern, it was produced in 1964. The pattern is of black and brown rings with a matte finish. Each mug is 3 3/4" x 3 3/8." They are in very good condition with light wear to the decoration. They each hold 13 oz according to the mark on the base.
Pyrex Terra Mugs TUmblers Set of 6