Ruling Pen
date: label: date made
content: 18th century
notes: label: Description
content: This 4-7/8" steel pen has twin blades whose line thickness is adjusted by a screw. The pen is not marked. Similar ruling pens first appeared in Europe at the beginning of the 18th century.
label: Description
content: References: Maya Hambly, <i>Drawing Instruments, 1580–1980</i> (London: Sotheby's Publications, 1988), 57–58.
label: Description
content: Sotheby & Company, Catalogue of a Collection of Scientific Instruments, the Property of the Late Henry Russel Wray, London, 1959 (a copy of the catalogue is in the accession file).
label: Location
content: Currently not on view
place: label: place made
content: Europe
topic: label: Subject
content: Drawing Instruments
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Pens and Pencils
label: See more items in
content: Science & Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.316935
label: accession number
content: 228694
label: catalog number
content: 316935
objectType: label: Object Name
content: pen
physicalDescription: label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: .7 cm x 12 cm x .7 cm; 9/32 in x 4 23/32 in x 9/32 in