Theodolite (T2)
date: label: date made
content: 1924
name: label: maker
content: Wild
notes: label: Description
content: The "Universal Theodolite" that Heinrich Wild introduced in 1923, later known as the T2, incorporated a radically new design. It was also highly successful—about 100,000 of these instruments were eventually produced. This example is marked "Heinrich Wild Heerbrugg No. 218." Wild Heerbrugg, Inc. gave it to the Smithsonian in 1961, stating that it had had been delivered on April 12, 1924, and used until July 1960 in the Swiss Canton of Tessin. The serial number probably means that this is the 18th instrument of this sort made for the market.
label: Description
content: This Wild theodolite has a steel frame, and weighs only 9.5 pounds. The horizontal and vertical circles are glass, and read directly to single seconds. The telescope magnifies 24 times and, equipped with stadia wires, it can be used for tachymetry. An auxiliary eyepiece lying alongside the telescope allows the user to read either circle without moving away from the station. By a combination of internal optics, each reading gives the mean of two opposite points on the circles.
label: Description
content: Ref: <i>Henry Wild's Universal Theodolite</i> (Heerbrugg, about 1925).
label: Location
content: Currently not on view
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: Henry Wild's Universal Theodolite
creditLine: label: Credit Line
content: Wild Heerbrugg Instruments, Inc.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.319023
label: catalog number
content: 319023
label: accession number
content: 231959
objectType: label: Object Name
content: theodolite
physicalDescription: label: Measurements
content: overall: 9 1/2 in; 24.13 cm
label: Measurements
content: overall in case: 12 in x 7 1/2 in x 6 1/2 in; 30.48 cm x 19.05 cm x 16.51 cm
label: Measurements
content: overall; bracket: 4 11/16 in x 3 3/4 in x 5 5/16 in; 11.90625 cm x 9.525 cm x 13.49375 cm