USS Oglala rotary registry padlock
Brass rotary registry lock manufactured by the Post Office Department’s Mail Equipment Shops in Washington, DC. The front body is marked “REG’D U.S. MAIL.” The lock was salvaged from the wreckage of the USS Oglala and is numbered L23084.
This registered mail lock is typical Mail Equipment Shops (MES) production. It was manufactured prior to World War II since it was recovered from the USS Oglala (CM-4, later ARG-1), a United States Navy minelayer. A torpedo launched from a Japanese plane on December 7, 1941, hit the adjacent light cruiser Helena. The explosion caused a rupture to the Oglala's port bilge. The ship rolled over to port, and then sank beside 1010 dock in the Pearl Harbor Navy Yard. The Oglala was later salvaged. This lock was one of the recovered artifacts of that fateful morning.