Vintage Stolzle depression era uranium glass shell serving plate

This vintage Art Deco shell-shaped dish is made of green uranium glass, attributed to the Hermanova Hut glassworks, part of the Stölzle company, produced around the 1930s to 1950s. 

Contains uranium oxide, causing it to glow brightly under ultraviolet (black) light. Features a distinct shell shape with textured veins and three small raised "toes" or feet on the underside for stability.
Produced in Czechoslovakia by the Hermanova Hut factory.