Pin Removal Tool
For removing a hinge pin, a tool having a wedge-shaped head mounted on a shank equipped with a support projection to receive the hinge. The head includes an impact surface for hammering the wedge portion between the hinge and the head of the hinge pin. A striker plate perpendicular to the tool shank receives impact blows to dislodge the pin from the hinge.
Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)
Courtesy the private collection of Roy Winkelman