Another Key with Notched Bolster
Slight modifications altered the functionality of a particular key type.
Notched Bolster KeyCompared to the first, this second key with notched bolster (A147.182) has a less adaptable handle but more adaptable claw.
University of the Pacific Permanent Collection, Donor: Maurice J. Owens, DDS
Bone Handle Screw PinThe bone handle is fixed to the shaft by a screw pin that, unlike a thumbscrew, inhibits quick repositioning.
Slots in Bolster SwivelThe swiveling portion, sitting above the bolster body, has slots that allow the claw to be placed quickly in positions of 45 degrees difference.
Claw DetailsThe claw edge consists of two crescent-shaped notches and it has a serrated inner surface.