Astronomical and navigational instruments, Optical equipment, Polar Equipment and Relics

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A telescope barrel and telescope objective lens from two different telescopes

AAA2227
Astronomical and navigational instruments

Object details:

Object ID AAA2227
Description These two parts from different telescopes are relics of Sir John Franklin's last expedition in search of the North-West Passage, 1845-48. AAA2227.1 and AAA2227.3: The brass barrel, which is severely crushed, has some remaining pieces of cord and leather at the eyepiece end. There would have been a draw tube, but this is now missing. It may have been one of the items obtained by the Schwatka expedition from Inuit on the Hayes River in May 1879. AAA2227.2: The objective lens assembly is made of silvered brass and has a sliding sun shade but no surviving lens cap. It was found near Ross Cairn, Point Victory, King William Island on 2nd June 1859 by the McClintock Search Expedition 1857-59.
Date made before 1845

Artist/Maker Unknown
Place made Unknown
Credit National Maritime Museum, Greenwich, London.
Materials brass; glass
Measurements Barrel: 513 x 53 mm; Objective mount: 112 x 52 mm
Parts
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