Surveyor's Vernier Compass
name: label: maker
content: Young, William J.
notes: label: Description
content: The "Wm. J. Young Maker 3641 Philadelphia" inscription indicates that this compass was made around 1859. The face is dark, and the needle ring is silvered. An outkeeper is on the face at west, and a circular level at east. The variation arc on the north arm extends 20 degrees either way, and reads by vernier to single minutes. The arms are unusually thick, making the compass unusually heavy. The box is marked "J. H. Marvin Lexington Ky."
label: Location
content: Currently not on view
place: label: place made
content: United States: Pennsylvania, Philadelphia
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: William S. Carley
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2000.0241.01
label: accession number
content: 2000.0241
label: catalog number
content: 2000.0241.01
objectType: label: Object Name
content: surveyor's compass
physicalDescription: label: Measurements
content: overall length: 16 in; 40.64 cm
label: Measurements
content: needle: 6 in; 15.24 cm
label: Measurements
content: overall in case: 4 3/4 in x 16 5/8 in x 8 3/8 in; 12.065 cm x 42.2275 cm x 21.2725 cm