Cornelius Knudsen Drawing Pen

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
Object Name
pen
date made
ca 1920-1958
maker
Knudsen, Cornelius
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
place made
Danmark: København, Copenhagen
ID Number
1985.0909.02
accession number
1985.0909
catalog number
1985.0909.02
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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