Octant
date: label: date made
content: 1840-1870
name: label: maker
content: Spencer, Browning & Co.
notes: label: Description
content: Octant with an ebony frame, ivory scale and name plate, reinforced brass arm, two sets of filters, and telescopic sight. The scale runs from 0° to about 107°, is graduated to 20 minutes, and read by vernier to single minutes. The scale is marked “SBR.” The name plate reads “Spencer. Browning & Co London.”
label: Description
content: Spencer, Browning & Rust was a mathematical instrument firm in London that began in business in the early 1780s, and that became Spencer, Browning & Co. in 1843.
label: Description
content: This octant once belonged to the donor’s ancestor, Jacob A. Westervelt (1800-1879), a ship builder and marine architect who served one term as mayor of New York City.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
topic: label: Subject
content: Navigation
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: Theron Patrick
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2013.0206.01
label: catalog number
content: 2013.0206.01
label: accession number
content: 2013.0206
objectType: label: Object Name
content: octant
physicalDescription: label: Measurements
content: overall; radius: 9 1/2 in; 24.13 cm
label: Measurements
content: overall: 4 1/2 in x 9 7/8 in x 12 in; 11.43 cm x 25.0825 cm x 30.48 cm