Hartzell Propeller for Liberty engine

This is one of the earliest Hartzell propellers made, when the Hartzell Walnut Company in Piqua, Ohio, began making walnut propellers for the U.S. Navy and the Signal Corps around 1917. The Liberty logo pictured was used only for a very short time before a trademark dispute forced Hartzell to change to a similar appearing shape, but with "Hartzell" in place of Liberty in the center. There are USN anchor symbols stamped on the hub, and the hub size is that of a Liberty engine.

Size:
Wood: Walnut