3″ high x 2″ diameter. Brass body. Brass shackle. Brass dial. “DOT LOCK BRITISH MADE PAT No 9878.-(’10)” is stamped on the obverse of the body. The hole on the reverse of the case receives a tool to change the combination. “DOT” stands for “Defiance of Thieves”. This lock has a gear mechanism.Patent #1006366. US Patent #1393269. More…