Geometric Model, L. Brill No. 37. Ser. 7 No. 8, Third Order Surface with Three Double Points

Geometric Model, L. Brill No. 37. Ser. 7 No. 8, Third Order Surface with Three Double Points

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This white plaster model of a third order surface has a square base and three symmetrically arranged peaks. The peaks come together at three points along their slopes, with a hollow area beneath. Various curves are indicated on the surface.
A paper tag reads: 37. Another paper tag reads: Fl. 3. Ord. mit [...] reellen Knpktn. [...] (/) Verl. v. L. Brill. 7 Ser. Nr. 8 [...].
This model, along with all the models of Series 7, is on the design of Carl Rodenberg of the technical high school in Munich.. It was first published by Brill in 1881.
L. Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill,1892, p.14, 61.
Accession file.
G. Fischer, Mathematical Models, Braunschweig: Vieweg, 1986, vol. 1, p. 19, vol. 2, pp. 12-14.
Currently not on view
Object Name
geometric model
date made
L. Brill
place made
Germany: Hesse, Darmstadt
Physical Description
paper (overall material)
plaster (overall material)
overall: 15 cm x 12.6 cm x 12.6 cm; 5 29/32 in x 4 31/32 in x 4 31/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Wesleyan University
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Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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