Two glass spectacle lenses from the 1845 British Northwest Passage Expedition led by Sir John Franklin. Both oval clear-glass lenses are stained brown.

The spectacle lenses were found at the boat site in Erebus Bay by Captain F. L. McClintock's sledge team on 30 May 1859, as part of the search expedition led by McClintock The site had been visited and partially investigated by Lt. William Hobson on 24 May but his report does not list everything he saw or removed. McClintock records ’Three glasses of spectacles'. [McClintock, Voyage of the Fox (1859), page 366].

The lenses were displayed at the Royal Naval Museum, Greenwich, Case 2, No. 94. 'Spectacles' glasses'. The items are also shown in - 'Stereoscopic slides of the relics of Sir John Franklin's Expedition' photographed by Lieutenant Cheyne RN, at the United Services Museum, Whitehall, No. 5 (top, right of centre).