Description: This consists of a white plastic planisphere with the northern sky on one side and the southern on the other; nine clear plastic altitude-azimuth templates for use at different latitudes up to 5 degrees north and south; a clear plastic meridian angle diagram; and a cardboard container. It is based on the Rude form, as modified in the early 1940s by Elmer Collins (1878-1958) of the United States Hydrographic Office. It was published by the Hydrographic Office and sold for $4.00. The Hydrographic Office transferred it to the Smithsonian in 1957. An inscription reads "NO. 2102-D / STAR FINDER AND IDENTIFIER / PATENT NOS. 2304797, 2337545."Ref: Gilbert T. Rude, Star Finder and Identifier," U.S. patent #1,401,446H. M. Jensen, et. al., "Navigational Instrument," U.S. patent #1,919,222Elmer B. Collins, "Star Finder," U.S. patent 2,304,797 (Dec. 15, 1942).Elmer B. Collins, “Star Finder,” U.S. Patent 2,337,545 (Dec. 28, 1943).Elmer B. Collins, "Star Finder," U.S. patent #2,337,545Nathaniel Bowditch, American Practical Navigator (Washington, D.C.: United States Hydrographic Office, 1962), pp. 586-589."Elmer B. Collins," Washington Post (2 October 1958), p. B2.maker number: 2012-DObject Name: star finderMeasurementsoverall: 8 in; 20.32 cmoverall: 10 in x 10 in x 3/4 in; 25.4 cm x 25.4 cm x 1.905 cm
Price: 22.99 USD
Location: Denver, Colorado
End Time: 2024-12-20T00:34:16.000Z
Shipping Cost: 7.5 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: Weems & Path
Custom Bundle: No
Model: 2102-C
MPN: 2102-C
Country/Region of Manufacture: United States
Modified Item: No
