Object Details
- Knudsen, Cornelius
- 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
- Credit Line
- Transfer from Library of Congress, Exchange and Gift Division
- ca 1920-1958
- ID Number
- 1985.0909.02
- accession number
- 1985.0909
- catalog number
- 1985.0909.02
- Object Name
- pen
- 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
- Denmark: Hovedstaden, Copenhagen
- See more items in
- Medicine and Science: Mathematics
- Pens and Pencils
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Drafting, Engineering
- Drawing Instruments
- Record ID
- nmah_1214600
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a9-ab37-704b-e053-15f76fa0b4fa
