A telescope barrel and telescope objective lens from two different telescopes

+ -

A telescope barrel and telescope objective lens from two different telescopes

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 draw tube of a marine telescope, which is severely crushed, has some remaining pieces of cord and leather at the eyepiece end, recovered by Lt. Schwatka's expedition, 1879-1880.

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. 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, see AAA2227.1 and .3

Back to Search Results

Buy a print License an image

For more information about using images from our Collection, please contact RMG Images.

Object Details

ID:	AAA2227
Collection:	Astronomical and navigational instruments; Polar Equipment and Relics
Type:	Telescope barrel and objective lens
Display location:	Not on display
Creator:	Unknown
Events:	Arctic Exploration: Franklin's Last Expedition, 1845-1848
Vessels:	Fox (1855)
Date made:	Before 1845
Credit:	National Maritime Museum, Greenwich, London.
Measurements:	Barrel: 513 x 53 mm; Objective mount: 112 x 52 mm
Parts:	A telescope barrel and telescope objective lens from two different telescopes Draw tube of a telescope (Telescope draw tube) (AAA2227.1) Objective lens and alloy tube end of a two-foot marine telescope (Telescope tube) (AAA2227.2) Fragment of telescope draw tube (Telescope draw tube fragment) (AAA2227.3)