Details
A Victorian Royal Observatory mahogany two-day marine chronometer
John Poole, No. 3535, circa 1865
The silvered dial signed and numbered John Poole MAKER TO THE ADMIRALTY, 57 Fenchurch St. LONDON 3535, and with the Government Mark, Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, Earnshaw escapement, cut bimetallic balance with Poole auxiliary and cylindrical heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimbal, three-tier brass-bound mahogany box, the middle section with inset rectangular bone ivory plaque inscribed JOHN POOLE. MAKER TO THE ADMIRALTY 57 Fenchurch St. LONDON No. 3535, later top-lid, external brass drop handles
100 mm. dial diam., 175 mm. sq. box
