Four Brass and Steel Watchmaker's Depthing Tools

Description:

Four Brass and Steel Watchmaker's Depthing Tools, Switzerland, 19th century, three of similar form with side-mounted thumbscrews for tightening the runners, and the fourth with more unusual top-mounted thumbscrews, two of the tools boxed, lg. 3 1/2-4 3/4 in.
Estimate $300-500