French Curve or Irregular Curve

Description
This flat wooden drawing instrument has curves on the outside and within an inner opening. There are numerous scratch marks and stains. A faint pencil mark reads: #30E (/) 40 ¢.
The shape of the curve is similar to an instrument shown in a Reeves & Sons catalog from 1904.
Reference:
Maya Hambly, Drawing Instruments, London: RIBA Drawings Collection, 1982, p. 32.
Location
Currently not on view
Physical Description
wood (overall material)
Measurements
overall: .1 cm x 25.5 cm x 8.3 cm; 1/32 in x 10 1/32 in x 3 9/32 in
ID Number
MA.328399
accession number
272517
catalog number
328399
Credit Line
Gift of Eunice L. Hoffman
subject
Mathematics
Drawing Instruments
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Curves
Data Source
National Museum of American History, Kenneth E. Behring Center

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