Hi and welcome to Robin's Nest! This is a fabulous vintage Dinkel Acker Privat ceramic or stoneware mug! Exact year of release unknown. About 5-1/2" high, 3-1/4" across the mouth, 3-3/4" across the base and 6" wide, including handle. Weighs 1.7 pounds. Made by Ceramarte, Brazil. In mint vintage condition.