3 Chelsea Ship's Clocks. 1) 5.5 in. silvered dial signed "Chelsea Ship's Bell" and by the retailer "Backer Lyman & Co. Inc., New Orleans"; has black incised hour numbers, sub seconds and open moon hands. Round brass 8 day spring driven movement signed "Chelsea Clock Co., Boston, USA" with serial number 734722, has a platform lever escapement and ship's bell strike on a coiled gong. In a forged brass case with hinged bezel, running and striking. 7.5 in. dia. 2) 5.5 in. silvered dial signed "Chelsea Ship's Bell" and by the retailer "South … Instrument Co."; has black incised hour numbers, sub seconds and open moon hands. Round brass 8 day spring driven movement signed "Chelsea Clock Co., Boston, USA" with serial number 771060, has a platform lever escapement and ship's bell strike on a coiled gong. In a forged brass case with hinged bezel, running and striking, missing washer and screw to secure minute hand and missing inner bezel. 7.5 in. dia. 3) 5.5 in. silvered dial signed "Chelsea Clock Co., Boston, USA" has black hour numbers, sub seconds and open moon hands; round brass 8 day spring driven time only movement signed "Chelsea Clock Co., Boston" with serial number 178591, has a platform lever escapement, in running condition. In a forged brass case with threaded bezel. 7.5 in. dia. Weight: 25 lbs.