American Wheel Cutting Engine

The neatly dovetailed chestnut and cherry frame has a 15 1/2-in. diameter two-part brass index plate with numerous divisions including 30, 48, 56, 60, 62, 64, 72, 78, 80, 84, 96, 98 and 118 and inner rings with 6, 7, 8 and 10, adjustable cutter frame with wooden handled crank and cutter arbor.

This tool is discussed and illustrated in T. R. Crom, Horological Shop Tools 1700–1900, Vol. 2, p. 664. Connecticut clock makers Daniel Burnap and John Avery used nearly identical machines.