Large footed bowl made of purple glass, round base, wall with surrounding silver painting in the form of stylizing flower motifs with three repeat motifs.Signed in silver on the bottom: FZ.Shell is in intact condition.Zwiesel technical school, decor design by Bruno Mauder, around 1920. Height: approx. 13.7 cm, diameter: approx. 16.0 cm.Lit: Writings from the Passau Glass Museum (The Glass Industry in Zwiesel) K. Schöne-Chotjewitz.