This is a good condition ANTIQUE CAST IRON TIRE TUBE VULCANIZER made in the USA. It’s marked “SHALER 5-MINUTE VULCANIZER”. Measurements are 2 1/2″ TALL AND 4 1/2″ LONG. Even though it’s a clamp or press for vulcanizing, it was used by a jeweler for holding parts for gluing, tooling, etc. Shipping and handling $7.