A bulkhead clock by the Chelsea Clock Co.
The 19.5cm. diameter black painted dial signed below '12' Chelsea Clock Co Boston with luminous Arabic numerals and hands, sweep seconds, single key wind, slow/fast regulation by '3', within a black painted case with rim for bulkhead attachment; and another, smaller with steel 13cm. dia dial further engraved U.S. Maritime Commission, Ser No. 6081 with tape on back reading Crew Mess
19.5cm. dia (2)