Sextant
date: label: date made
content: 1941-1945
name: label: maker
content: David White Co.
notes: label: Description
content: This type of sextant was introduced during World War II. The limb is graduated to single degrees. A drum micrometer, the teeth of which mesh with teeth cut into the edge of the limb, reads to 1 minute and, with vernier, to 6 seconds of arc. The inscriptions read "David White Co. Milwaukee, Wis." and "U.S. NAVY, BU. NAV. MARK II"
label: Description
content: Ref: Benjamin Dutton, <i>Navigation and Nautical Astronomy</i> (Annapolis, Md., 1948), pp. 347-355.
label: Location
content: Currently not on view
place: label: place made
content: United States: Wisconsin, Milwaukee
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Navigation
label: See more items in
content: Measuring & Mapping
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2004.0054.01
label: catalog number
content: 2004.0054.01
label: accession number
content: 2004.0054
objectType: label: Object Name
content: sextant
physicalDescription: label: Measurements
content: box: 5 1/2 in x 11 1/4 in x 11 3/4 in; 13.97 cm x 28.575 cm x 29.845 cm
label: Measurements
content: sextant radius: 6 1/2 in; 16.51 cm
label: Measurements
content: overall: 5 1/2 in x 11 1/4 in x 11 1/4 in; 13.97 cm x 28.575 cm x 28.575 cm