Open Triangle

<< >>
Description
This unmarked 6" 30°-60°-90° triangle with an open interior is made of two different woods, with a section of darker wood set between two sections of lighter wood. The dating of other objects from this donor suggests the triangle was made around 1900. Compare to MA.335329. James W. Queen of Philadelphia sold a similar walnut or mahogany triangle with a maple inlay for 50¢ in 1883.
Reference: James W. Queen & Co., Priced and Illustrated Catalogue of Mathematical Instruments (Philadelphia, 1883), 51.
Location
Currently not on view
date made
ca 1900
Physical Description
wood (overall material)
Measurements
overall: 8.6 cm x 5 cm x .3 cm; 3 3/8 in x 1 31/32 in x 1/8 in
ID Number
MA.335330
catalog number
335330
accession number
305958
Credit Line
Gift of Eunice L. Hoffman
subject
Mathematics
Drawing Instruments
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Squares and Triangles
Data Source
National Museum of American History, Kenneth E. Behring Center

Comments

Add a comment about this object