Roman with ruby red overlay and decorative cut decoration around 1920-30

Roman made of colorless glass, disc base with wedge-cut decoration in the base, faceted, conical stem shaft notched on the sides, ruby red overlaid spherical cup with decorative cut decoration / sling star. Wine glass is in intact condition with a small polished spot on the inner edge. German around 1920-30, Glashütte not known. Height: approx. 19.2 cm.