Geologist's or Forester's Compass
name: label: maker
content: David White Co.
notes: label: Description
content: This is an aluminum compass with brass sights. The raised rim and beveled outer ring are graduated every degree and numbered every 10 degrees in quadrants from north and south. The southeast quadrant of the face has a variation scale that extends 25 degrees one way and 45 degrees the other, that is graduated to degrees, and that reads by folded vernier to 5 minutes. The western half of the face is graduated to degrees, and equipped with a pendulum clinometer pivoted at the center. There are level vials on the SE and SW corners of the plate. The four beveled edges of the plate are graduated, one to inches and tenths, one to inches and eighths, and two as protractors. The back of the plate has a diagram showing the arrangement of township numbering. David White Co. termed it an improved geologist's or forester's compass as designed for the U. S. Forest Service. This example belonged to the University of Missouri at Columbia. New, it cost $45. The "David White Co. Milwaukee, Wis." inscription refers to a firm that was established in 1895, and renamed the David White Instrument Co. in 1956.
label: Description
content: Ref: David White Co., <i>Catalog and Price List, 7th edition</i> (Denver, about 1935), p. 37.
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
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content: Surveying and Geodesy
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content: Measuring & Mapping
publisher: label: Related Publication
content: David White Co.. Catalog & Price List, 7th Edition
creditLine: label: Credit Line
content: University of Missouri-Columbia, Department of Civil Engineering
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.333646
label: catalog number
content: 333646
label: accession number
content: 300659
objectType: label: Object Name
content: compass (pocket with folding sights)
physicalDescription: label: Measurements
content: overall: 4 in x 4 in; 10.16 cm x 10.16 cm
label: Measurements
content: overall: 2 in x 6 in x 4 3/4 in; 5.08 cm x 15.24 cm x 12.065 cm