A mahogany two day marine chronometer, No. 15342, English, retailed by Kelvin & Wilfred o. White Co, Boston and New York, 11.5 cm silvered dial, subsidiary seconds and up/down dials, the fusee movement with maintaining power, Earnshaw's spring detent escapement with compensating balance and helical spring, the brass bowl in an mahogany case (lid lacking), recessed handles, signed movement Thomas Mercer