Pen Knife

Description
This 5" steel knife blade probably has a celluloid (rather than an ivory) handle. It was received with a sizable collection of mathematical drawing instruments, but makers of drawing instruments did not typically advertise knives in their catalogs. This object may have been useful for sharpening pen quills and pencils. Draftsmen also used knives as erasers, but the blade on this example is shaped differently from the blades on the "steel erasers" depicted in Keuffel & Esser and Dietzgen catalogs. Compare to the knife in 1990.0690.01.
Location
Currently not on view
date made
early 20th century
Physical Description
steel (overall material)
plastic (overall material)
Measurements
overall: 12.5 cm x 1.2 cm x 1.2 cm; 4 29/32 in x 15/32 in x 15/32 in
ID Number
1978.2110.13
accession number
1978.2110
catalog number
336739
Credit Line
Gift of Ruth A. Ming
subject
Mathematics
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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