Sheet, Graduation of V.C. and H.C. of Standard Instrument
date: label: date made
content: 1916-10-26
notes: label: Description
content: This is part of the documentation for dividing iengine MA.328870. It shows an arc of a divided circle adjacent to an vernier circle and describes the graduation of the vernier circle and "h.c." of a standard instrument.
label: Description
content: The document is signed: Oct. 26. 1916 (/) JW. J. Widner was the first shop foremean at the Department of Terrestrial Magnetism and used this instrument extensively.
label: Description
content: Reference:
label: Description
content: Accession file.
label: Location
content: Currently not on view
place: label: place made
content: United States: District of Columbia, Washington
topic: label: Subject
content: Mathematics
label: Subject
content: Ruling and Dividing Engines
setName: label: See more items in
content: Medicine and Science: Mathematics
creditLine: label: Credit Line
content: Gift of the Carnegie Institution of Washington, Department of Terrestrial Magnetism
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0036.10
label: accession number
content: 1987.0036
label: catalog number
content: 1987.0036.10
objectType: label: Object Name
content: Sheet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 23.8 cm x 15 cm; 9 3/8 in x 5 29/32 in