Rosenthals TAC glassware is derived from Walter Gropiuss designs for the TAC 02 dinnerware. It embodies the Bauhaus style of a minimalist, geometric simplicity that combined functionality and elegance. Material: Leaded CrystalMeasurements: Small: 11.25; 22 oz.Large: 11.00; 29 oz. Walter Gropius was born in Berlin in 1883 and died in Boston in 1969. He founded The Architects Collaborative Inc. (TAC), Cambridge, Massachusetts in 1946. Gropius studied architecture in Berlin and Munich. In 1918 he was called to Weimar where, as Director of the