Lot #540 - A Mercer's survey chronometer
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Auction House:Cordy's
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Sale Name:February 2018 Art & Antique Auction
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Sale Date:27 Feb 2018 ~ 9.30am (NZ time) - Session 1: Lots 1 - 447
27 Feb 2018 ~ 5pm (NZ time) - Session 2: Lots 1 - 859 -
Lot #:540
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Lot Description:A Mercer's survey chronometer
two-day duration with Arnold type spring detent escapement and fusée and chain movement, silvered and engraved dial marked 'Thomas Mercer Maker to the Admiralty, The Indian Colonial & USA Governments, London & St. Albans, 12781', blued steel hands. Hours are numbered 0-23 with Arabic numerals. Bayonet bezel with shuttered winding hole in the glass. Dial is cut away to show a 59 tooth contact lifting wheel mounted on the seconds arbor and a contact blade which is lifted each second except for the 59th in each minute to enable an audible signal in earphones each second with the silence being a warning of the approach of the full minute. Mounted in blackened brass cylindrical case with external battery and microphone contacts and stop/start lever and encased in heavy leather carrying case with strap, and pouch for safety ratchet winding key. Originally purchased by NZ Government in 1925 (c.f. Mercer: Mercer Chronometers p.210.) -
Estimate:NZ$1,400 - 1,400
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Realised Price:
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Category:Clocks & Watches
This Sale has been held and this item is no longer available. Details are provided for information purposes only.
