Theodolite
name: label: maker
content: David White Co.
notes: label: Description
content: This 9-inch theodolite was made for the U. S. Coast and Geodetic Survey, designed for first order triangulation, and dates from the mid-1930s. New, it cost $2,175. The inscription reads "David White Co. Milwaukee Wis. No. 9049" and "USC&GS No. G362." The horizontal circle is graduated to degrees, and read by opposite micrometers with drum dials to 30 seconds. The vertical circle is graduated to 10 minutes, and read by opposite verniers and magnifiers to single minutes. The David White Co. was established in 1895, and renamed the David White Instrument Co. in 1956.
label: Description
content: Ref: David White Co., <i>Catalog A</i>, 7th edition (Milwaukee, Wisconsin, about 1937), pp. 103-104.
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: Surveying and Geodesy
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content: Measuring & Mapping
publisher: label: Related Publication
content: David White Co.. Catalog A, 7th Edition
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0395.11
label: accession number
content: 1986.0395
label: catalog number
content: 1986.0395.11
objectType: label: Object Name
content: geodetic theodolite
physicalDescription: label: Measurements
content: overall: 10 in; 25.4 cm
label: Measurements
content: horizontal circle: 9 in; 22.86 cm
label: Measurements
content: vertical circle: 5 1/2 in; 13.97 cm
label: Measurements
content: telescope: 13 in; 33.02 cm
label: Measurements
content: overall: 26 in x 32 in x 68 in; 66.04 cm x 81.28 cm x 172.72 cm