Wilhelm Wagenfeld (German, 1900-1990), Bauhaus tea set, c. 1930, manufactured by Jenaer Glaswerk Schott & Gen., clear glass, comprising teapot, sugar bowl, cream jug, under-plate, seven mugs, eight coffee cups, twelve saucers, eight small plates and nine small plates, retain manufacturer's stamp (48), height 13 cm (teapot)