Brass Dial-indexing Tool

Description:

Brass Dial-indexing Tool, Switzerland, c. 1890, the dial is tightened to the center of the wheel under the brass arm, and the wheel is spun to each notch, which indicates where each of the sixty marks on the dial will be made, ht. 4 1/2, lg. 6 1/2 in.

Note: Crom #3 discusses this tool on p. 304, figure 633, where you are directed to another discussion (p. 240, figure 546) of tools of this type appearing in an 1890 catalogue.
Estimate $200-400