Material: Uranium glass, also known as Vaseline or canary glass, glows bright green under UV light due to the presence of uranium oxide. Design: Features a round shape with etched leaf patterns and a knobbed lid. Era: Most likely from the 1930s, a period when uranium glass was popular. Production was restricted during WWII and the Cold War. Safety: Generally considered safe for handling, as it emits negligible radiation, but ingestion should be avoided. Collectibility: Uranium glass is a popular collectible, with pieces dating back decades. This piece is in great condition, there is a small chip on the inside rim of the dish. Could be filed out see in photos.