Geometric Model Stand D41, 7
date: label: date made
content: 1878-1914
name: label: possible maker
content: Brill, L.
label: possible maker
content: Schilling, Martin
notes: label: Description
content: 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 an elliptic ring.
label: Description
content: A paper tag on the stand reads: D41,7. A pencil mark on the bottom reads: VI [. . .] 2 (/) X.1.No. 3. The pencil marks may refer to two Brill models that would fit this stand. Brill’s model number 161, Ser. 6, No. 2 is a plaster model for an ellipsoid corresponding to the wave surface for refraction in a biaxial crystal. Brill’s model No. 4, Series. 10.1, No. 3, is an ellipsoid divisible in two parts (for examples see 1990.0571.02 and 1985.0112.001). It is possible that the stand is for 1990.0571.02. However, there is a model of an optical surface (not by Brill or Schilling) with museum number 1982.0795.22 that has a paper tag that reads: D41,7.
label: Description
content: References:
label: Description
content: L. Brill, </>Catalog</I>, 1892, p. 13, 21, 87, 91.
label: Description
content: M. Schilling, <I>Catalog</I>, 1911, p. 13, 21, 72, 111, 168.
label: Location
content: Currently not on view
place: label: place made
content: Germany
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.23.02
label: catalog number
content: 304722.23.02
label: accession number
content: 304722
objectType: label: Object Name
content: Geometric Model Stand
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 1.5 cm x 12.7 cm x 10.4 cm; 19/32 in x 5 in x 4 3/32 in