Rude Star Finder and Identifier, US Navy, 2102-C, A-N Type 1 JU-88 The clock sets and winds

The clock sets and winds fine

Vice versa for a short pilot

but it is either non-functional or requires the correct electrical input to function

inspection

Rude Star Finder and Identifier, US Navy, 2102-C, A-N Type 1 JU-88 The clock sets and windsFrom the National Museum of American History: This star finder, designed for aeronautical use, was based on the Rude form as modified by Elmer Collins of the United States Hydrographic Office. It consists of a white plastic planisphere with the northern sky on one side and the southern on the other that shows all the stars in the American and the British Air Almanacs; nine clear plastic altitude azimuth templates for use at different latitudes up to