Large foam glass bowl with red and black thread decoration, Loetz around 1935

Large foam glass bowl with irregularly interspersed black and vermilion glass threads with white powder between the layers. Floor with dislocated tear. Shell is in intact condition. Crystal factory Spiegelau/Lower Bavaria, which produced these bowls for Loetz. ca.1925-30. Height: approx. 7.5 cm, diameter: approx. 30.0 cm. Lit: Specimens in the Passau Glass Museum, room 26, display case 99. Lit. Lötz, Böhmisches Glas, page 283.