Rude Star Finder (2102-B)

This consists of a white plastic planisphere with the northern sky on one side and the southern on the other, seven clear plastic templates centered at 10° intervals of latitude, and a cardboard container. The United States Hydrographic Office transferred it to the Smithsonian in 1957.
The star finder bears the inscription "H.O. NO. 2102-B / HYDROGRAPHIC OFFICE / RUDE / STAR FINDER AND IDENTIFIER / (WITH HYDROGRAPHIC OFFICE MODIFICATIONS) PRICE $1.00 / Published at the Hydrographic Office, Washington, D.C. Oct. 1940 under the authority of THE SECRETARY OF THE NAVY"
Ref: G. T. Rude, Star Finder and Identifier," U.S. patent #1,401,446
H. M. Jensen, et. al., "Navigational Instrument," U.S. patent #1,919,222
Currently not on view
Object Name
star finder
date made
Rude, Gilbert T.
overall: 8 in; 20.32 cm
place made
United States: District of Columbia, Washington
ID Number
accession number
catalog number
Measuring & Mapping
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center

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