Pantograph with Silver-Colored Substitute Joints
date: label: date made
content: before 1907
notes: label: Description
content: This instrument consists of four flat wooden bars.Three bars are eighteen inches long, and one is ten inches long. Each bar has a set of irregularly spaced holes that are marked from ½ to 1/16.One of long bars has a metal and wooden piece at one end with points on the bottom for fixing it to table. Another long piece has metal pointer through one end. The third long piece has rounded metal piece through one end which can be used to secure it to a second bar. With three additional joints of this sort and a pencil point, the device could be used as a simple pantograph, an instrument for enlarging and reducing drawings.
label: Description
content: The object has no maker’s mark. It was transferred to the Smithsonian from the U.S. Geological Survey in 1907.
label: Description
content: For an example of a pantograph with similar scales, see the 1859 catalog of J. Molteni & Cie.
label: Description
content: Reference:
label: Description
content: J. Molteni & Cie., <I>Catalogue et Pris Courant des Principaux Produits</I>, Paris, 1859, p. 59.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Pantographs
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content: Science & Mathematics
creditLine: label: Credit Line
content: Transfer from U.S. Geological Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.247969
label: catalog number
content: 247969
label: accession number
content: 47736
objectType: label: Object Name
content: Pantograph
label: Object Name
content: pantograph
physicalDescription: label: Physical Description
content: brass (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 4.5 cm x 45 cm x 3.8 cm; 1 25/32 in x 17 23/32 in x 1 1/2 in