Intertech Bow Compass Sold by Hearlihy & Co.

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This green zinc alloy instrument has a black plastic handle. Silver metal adjusting bolts set the width of the instrument and the length of the needle and pencil points. The front of the handle is marked with the letter H. The back of the handle is marked: GERMANY. A gray and clear plastic envelope has a black and white plastic tube with two replacement pencil leads. The front of the case is marked in gold: H (/) Hearlihy & Co (/) Springfield, Ohio (/) 404. The flap for the case fastens on the back and is marked: Western Germany.
For information on the manufacturer and distributor, see 1987.0589.01. On this example, the adjusting bolts for the points are on the front and back of the instrument, instead of on the outside of each leg.
Currently not on view
date made
Intertech Drawing Instruments
place made
Deutschland: Mecklenburg-Vorpommern, Brunn
Physical Description
zinc alloy (overall material)
plastic (overall material)
overall: 2.1 cm x 8.2 cm x 22 cm; 13/16 in x 3 7/32 in x 8 21/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Daniel A. Hearlihy
Drawing Instruments
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Dividers and Compasses
Data Source
National Museum of American History


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