Depression Glass Block Optic Uranium Glass Anchor Hocking

This uranium glass appears to be depression glass until you hold it under a black light and it begins to glow! Uranium glass is also called vaseline glass. This type of glass began in the 1830's in Europe, it has a small amount of uranium dioxide added during its manufacturing process. I would not recommend using it in direct contact with food. Uranium glass is highly collectible! Thanks for looking!