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Sextant protractor or reflecting protractor, invented by Sir Howard Douglas in 1811, with Admiralty mark "B 81", in fitted wooden box, made by William Cary of London, c. 1850
Sextant protractor or reflecting protractor, invented by Sir Howard Douglas in 1811, with Admiralty mark "B 82", in fitted wooden box, made by William Cary of London, c. 1850
Sextant protractor or reflecting protractor, invented by Sir Howard Douglas in 1811, with Admiralty mark "B 83", in a box, and made by William Cary of London, c. 1850
Sextant, anodized brass Dollond-pattern 7" frame with polished brass limb and wooden handle with brass-lined hole, in polished mahogany box with certificate, used on the British Antarctic Expedition 1901 - 1904 (the Discovery Expedition), signed by Henry Hughes of London, c. 1900
Sextant, anodized brass diamond and diamond-pattern 8" frame, polished brass limb and wooden handle, in fitted mahogany box, signed and made by William Cary of London, 1890
Four inch sextant in a fitted wooden case, by Cary of London, 1901, used to take bearings on the British Antarctic Expedition, 1901 - 1904
Surveyor's sextant of brass fitted with reading microscope, with a pillar stand, made by Troughton and Simms, London, in two mahogany cases
Sextant, oval pattern brass frame, some parts missing, in mahogany keystone box, made by W. Endersbee and Son of London, c. 1840
Box sextant in a red leather case, by Adie of Edinburgh, and used in the Peninsular War
Sextant, double-frame bridge, brass with wooden handle, hand lens missing, in damaged mahogany keystone box, signed and made by Jesse Ramsden of London, c. 1795
Sextant, double frame, brass pillar frame with wooden handle and silver scales, in damaged mahogany keystone box, made by George Bradford of London, c. 1825
Sextant, double frame, brass frame and limb with wooden handle and silver scales, in fitted mahogany keystone box, by Matthew Berge of London, c. 1801
Sextant, brass diamond and curved frame and limb, wooden handle, inlaid silver scale, in mahogany keystone box, signed and made by Alexander Dobbie of Glasgow, c. 1880