2 7/8″ high x 2 1/4″ wide. Iron. Barrel key. Black enamel paint finish. Trunk/Hasp lock. The obverse of the case has a shield type design cast on it. The R&E Co. trademark is cast on the obverse of the body. “PAT.APR.18.1882” stamped on the reverse of the case at 6 o’clock.Patent # D12891.