Both the function and date of this tool are speculative. It was among a large group of clock and watch tools owned by the Dominys, and the shape of its handle and shaft indicates that it was made during Felix Dominy's period of activity, 1817–1835. The only object that will fit into the small hole in the terminus of its shaft is the arbor of a watch pinion and wheel. Special-purpose tools made by craftsmen continue to be an enigma, because as complete as source book descriptions often are they do not cover every possible activity of the crafts they describe.

Holder, Felix Dominy (purchaser or maker), 1815-1835. Iron; Beech. 5.0" (L). Museum purchase with funds provided by Henry Belin du Pont, 1957.0026.586