Model of Contour Lines by Richard P. Baker, Baker #92

Model of Contour Lines by Richard P. Baker, Baker #92

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Usage conditions apply
This painted plaster model showing contour lines fits in an open wooden box.
In a catalog from about 1905, Baker described the surface shown as “a quasi geographical [sic] area containing 3 peaks, 1 hollow, and 2 passes. Contours, slope lines, ridge, and course lines are marked. An inloop and outloop curve occur.”
R. P. Baker, A List of Mathematical Models, [1905], p. 16. A copy of this document is in the Baker Papers at the University of Iowa Archives.
R. P. Baker, Mathematical Models, Iowa City, Iowa, 1931, p. 5.
Currently not on view
Object Name
geometric model
date made
ca 1900-1935
Baker, Richard P.
place made
United States
Physical Description
plaster (overall material)
wood (overall material)
metal (overall material)
white (overall color)
green (overall color)
blue (overall color)
black (overall color)
plaster cast. sides screwed. (overall production method/technique)
average spatial: 4.5 cm x 20.6 cm x 20.4 cm; 1 25/32 in x 8 1/8 in x 8 1/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Frances E. Baker
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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