Geometric Model, L. Brill No. 43. Ser. 7 No. 14, Third Order Surface with Two Kinds of Double Points

Geometric Model, L. Brill No. 43. Ser. 7 No. 14, Third Order Surface with Two Kinds of Double Points

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This white plaster model of a third order surface has a square base with two peaks and two double points. A paper tag reads: 43. Another paper tag reads: Fl. 3 Ord. mit bipl. Knotenpunkt B5 [/] Verl. v. L. Brill. 7. Ser. Nr. 14.
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.
The object was exhibited at the German Educational Exhibit at the Columbian Exposition, a World’s Fair held in Chicago in 1893. It there was purchased by Wesleyan University in Connecticut, and subsequently was donated to the Smithsonian.
L. Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill,1892, p.14, 62.
Accession file.
G. Fischer, Mathematical Models, Braunschweig: Vieweg, 1986, vol. 1, p. 25, 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: 15.2 cm x 12.6 cm x 12.6 cm; 5 31/32 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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