A Victorian mahogany two-day marine chronometer, John Poole, No. 3054, circa 1830, the silvered dial signed and numbered John Poole maker to the Admiralty, 57 Fenchurch St, London, 3054 Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, small diameter (61mm.) movement with Earnshaw escapement, cut bimetallic balance with Poole auxillary and cylindrical heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimball, three-tier brass bound mahogany box, the middle section with rectangular bone ivory plaque inscribed John Poole, 57 Fenchurch St., London, sold by OWEN OWENS, 4 South Castle St., Liverpool, external brass drop handles -- 87mm. dial diam., 162mm. sq box.

細節

A Victorian mahogany two-day marine chronometer, John Poole, No. 3054, circa 1830, the silvered dial signed and numbered John Poole maker to the Admiralty, 57 Fenchurch St, London, 3054 Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, small diameter (61mm.) movement with Earnshaw escapement, cut bimetallic balance with Poole auxillary and cylindrical heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimball, three-tier brass bound mahogany box, the middle section with rectangular bone ivory plaque inscribed John Poole, 57 Fenchurch St., London, sold by OWEN OWENS, 4 South Castle St., Liverpool, external brass drop handles -- 87mm. dial diam., 162mm. sq box.
See illustration