Alidade
name: label: maker
content: W. & L. E. Gurley
notes: label: Description
content: This is a simple brass rule with beveled edge and short folding sights at either end. It is marked "W. & L. E. Gurley Troy, N.Y." and "U.S.G.S. 182." The U. S. Geological Survey transferred it to the Smithsonian in 1909.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Troy
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Surveying and Geodesy
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Geological Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.252974
label: catalog number
content: 252974
label: accession number
content: 49676
objectType: label: Object Name
content: Alidade
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 18 in; 11.43 cm x 45.72 cm
label: Measurements
content: overall arms folded down: 3/4 in x 18 in x 1 1/2 in; 1.905 cm x 45.72 cm x 3.81 cm