A small ball of blue wool from the 1845 British Northwest Passage Expedition led by Sir John Franklin.

The ball of wool was possibly 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 does not record the ball of worsted wool in the listings at the back of his book. [McClintock, Voyage of the Fox (1859), page 366-7].

However, it was displayed at the Royal Naval Museum, Greenwich, Case 2, No. 95. 'Ball of worsted'. The item is 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. 7 (left side below the port fire pieces) along with other material from the boat place.