Bubble Sextant
date: label: date made
content: 1929
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: The Mark II, Model 2 was designed by Noel Davis, modified by Keuffel & Esser, and produced for the U.S. Navy. This example was the 2nd one made in 1929. P. V. H. Weems donated it to the Smithsonian in 1963. The inscription reads: "BUBBLE OCTANT MARK II, MOD. 2 / BUREAU OF AERONAUTICS U.S. NAVY / SERIAL NUMBER 2-29 / MADE BY / KEUFFEL & ESSER CO. / NEW YORK / 57312 / PAT. PENDING."
label: Description
content: Ref: T. C. Lonnquest, "Operation and Adjustment of the Mark II Model 2 Octant," Bureau of Aeronautics, Navy Department, Technical Note No. 207 (Nov. 22, 1929).
label: Description
content: Lawrence Radford and Noel Davis, "Sextant," U.S. patent #1,743,979
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York
label: associated place
content: United States
setName: label: See more items in
content: Military and Society: Armed Forces History, Naval
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: Weems Memorial Library
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: AF.59058-N
label: catalog number
content: 59058-N
label: accession number
content: 242229
objectType: label: Object Name
content: Octant