Geometric Model Stand by L. Brill for Model of an Optical Surface, D41,6

Description
This is one of a group of hollow wooden stands, painted black, which are designed to hold models like those produced by Ludwig Brill and Martin Schilling. It is a circular ring.
A paper tag on the stand reads: D41,6. A pencil mark on the bottom reads: X.1 (/) 7. Ludwig Brill’s model No. 159, Ser. 10.1 No. 7 is a plaster model for a wave surfaces for refraction in a uniaxial crystal. An example of this model is 1982.0795.21. A tag on that model reads: D41,6. It was made by L. Brill. This same model had number 357, Ser. 10, No. 7 in Schilling’s catalog.
Compare stand MA.394722.23.09, which has the same shape but no tags and a different mark.
References:
L. Brill, Catalog, 1892, p. 21, 87, 91.
M. Schilling, Catalog, 1911, p. 21, 168, 172.
Location
Currently not on view
date made
1885-1900
maker
Brill, L.
place made
Germany
Deutschland: Hessen, Darmstadt
Physical Description
wood (overall material)
paper (overall material)
Measurements
overall: 1.5 cm x 10 cm x 10 cm; 19/32 in x 3 15/16 in x 3 15/16 in
ID Number
MA.304722.23.01
catalog number
304722.23.01
accession number
304722
Credit Line
Gift of Brown University Department of Mathematics
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History

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