You are offerding on an antique sold brass ships clock. It says \"Mark I Deck Clock,\" \"US Navy,\" \"14385,\" \"1941,\" and \"Chelsea\" on the front. It measures 8\" in diameter and is 4\" deep. It was one of two ships clocks that belonged to my contractor; he told me that this was on a ship he worked on while in the service. It runs, and comes with what I think is the original key. It will need to be cleaned and serviced.