Rude Star Finder and Identifier, US Navy, 2102-C, A-N Type 1 JU-88 This instrument seems to have

This instrument seems to have had a very interesting history

Vice versa for a short pilot

The slide itself has a red index marker to align with the frequency measurement scale on the Slide Bar

The clock sets and winds fine

Weston model 1534

Rude Star Finder and Identifier, US Navy, 2102-C, A-N Type 1 JU-88 This instrument seems to haveFrom 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