Large, heavy bowl with sharp cutting and carving techniques, probably Nora Ortlieb

Large bowl made of heavy colorless glass, pressed round body with polished bowl interior, outer wall with irregular jagged decoration using sharp-cut and carving techniques, partially polished. Bowl is in intact condition with three chips on the jagged bottom, inside of bowl with fine scratches / signs of wear. Stuttgart School of Applied Arts, design and execution probably Nora Ortlieb. Height: approx. 4.0 cm, diameter: approx. 31.5 cm, weight: approx. 2.65 kg. Lit. T. Bröhan, Modern Glass Art, page 370, Fig. 176, vase.