Instruction Card for Robertson-Amsler Polar Planimeter
date: label: date made
content: ca 1900
name: label: maker
content: James L. Robertson & Sons
notes: label: Description
content: These salmon-colored card fragments were received with MA.333766. They give partial instructions for taking measurements with an "averaging planimeter." The reverse side of the card has a drawing of a connector for a steam engine indicator and several user testimonials.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York City
topic: label: Subject
content: Mathematics
label: Subject
content: Engineering
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Planimeters
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of R. J. Russell
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.302380.02
label: accession number
content: 302380
label: catalog number
content: 302380.01
objectType: label: Object Name
content: sheet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 8.5 cm x 9.5 cm; 3 11/32 in x 3 3/4 in