Cornelius Knudsen Drawing Pen

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Description
This 6" aluminum, German silver, and steel drawing pen is marked: CORN.KNUDSEN. Trademarks of two superimposed dividers are on either side of the mark. In 1838 Cornelius Knudsen founded a firm in Copenhagen, Denmark, that made optical, navigational, and surveying instruments, planimeters, and equipment for telegraphy into the 1930s. This object was received and is stored with a set of drawing instruments, 1985.0909.01. It was owned by Harald Trap Friis (1893–1976), a Danish emigrant who became a prominent radio engineer for Bell Labs.
Location
Currently not on view
date made
ca 1920-1958
maker
Knudsen, Cornelius
place made
Danmark: København, Copenhagen
Physical Description
aluminum (overall material)
german silver (overall material)
steel (overall material)
Measurements
overall: 1 cm x 15.1 cm x .8 cm; 13/32 in x 5 15/16 in x 5/16 in
ID Number
1985.0909.02
accession number
1985.0909
catalog number
1985.0909.02
Credit Line
Transfer from Library of Congress, Exchange and Gift Division
subject
Mathematics
Drafting, Engineering
Drawing Instruments
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Pens and Pencils
Data Source
National Museum of American History, Kenneth E. Behring Center

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