FYI it's totally safe to have and handle. Infact a report published by the US Nuclear Regulatory Commission in 2001 stated that uranium glass is considered to be safer than household electronics. but it is recommended that you do not eat or drink off it in the unlikely event that you chip or scratch it and ingest some of it. If you go thrift shopping or to antique shops bring a small uv light with you. If the glass glows green under the uv it's uranium glass.