An English two-day marine chronometer, Norris Liverpool, No 199, 19th c, the silvered dial with roman numerals and 54 hour up-down ring and subsidiary seconds dial, the chain fusee movement with Earnshaw type escapement, cut bimetallic balance with compensation weights and helical balance spring, in lacquered brass bowl and mahogany deck box, box 16cm w Apparently working order; no key or key to box