Early Key with Modified Shaft
Some early keys were modified to suit the particular practitioner’s needs.
Modified Shaft KeyCirca 1760-1780, the maker of this instrument (A147.165) added two slight bends to turn an essentially straight-shafted key into a more efficient extraction instrument.
University of the Pacific Permanent Collection, Donor: Maurice J. Owens, DDS
Dual-Tapered HandleDual-tapered wood handle permanently fixed to the shaft.
Crescent-Shaped ClawCrescent-shaped claw tip.
Cylindrical BolsterKnurled thumbscrew for quick claw exchange, and a cylindrical bolster, possibly designed to attach a soft padding.