Dietzgen 738C Bow Compass with Pen Point

This steel instrument has a needle point on one leg and a pen point on the other. A cross-hatched handle is attached to a ring, which in turn is attached to the legs. A screw goes through both legs, with the nut for setting the compass at a desired width outside the leg with the needle point. Additional thumbscrews allow adjusting of the needle and pen points.
The instrument appears to be a Champion Bow Pen, model number 738C, advertised in 1926 by the Eugene Dietzgen Company of Chicago. The leg with the needle point has handwriting: P M LARSEN. Engraved on the other leg is the word EXCELLO and the Dietzgen logo.
Reference: Catalog of Eugene Dietzgen Co., 12th ed. (Chicago, 1926), 59, 74.
Currently not on view
Object Name
bow pen
compass, drawing
date made
ca 1926
Eugene Dietzgen Company
Physical Description
steel (overall material)
nickel silver (overall material)
overall: 11 cm x 4 cm x 1 cm; 4 11/32 in x 1 9/16 in x 13/32 in
place made
United States: Illinois, Chicago
ID Number
accession number
catalog number
Science & Mathematics
Drawing Instruments
Dividers and Compasses
See more items in
Medicine and Science: Mathematics
Dividers and Compasses
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of William J. Ellenberger

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