- This 12" 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. Each corner is reinforced with horizontal splines made from the lighter wood: two in the right angle, and three in the other two angles. The back of the object has a sticker marked: 838. Compare to 1977.1101.0087, MA.335329, and MA.335330.
- Neither Keuffel & Esser nor the Eugene Dietzgen Company advertised triangles like this one. James W. Queen of Philadelphia offered two-toned triangles, of walnut or mahogany with a maple or ebony inlay, but they did not have the splines. The previous owner of this instrument collected more than 1,200 hand tools and machine tools and displayed them at his family's building company in Baltimore, Md. This object was item number 838 in his collection.
- Currently not on view
- Object Name
- date made
- ca 1900
- Physical Description
- wood (overall material)
- overall: 30 cm x 17.7 cm x.3 cm; 11 13/16 in x 6 31/32 in x 1/8 in
- ID Number
- catalog number
- accession number
- Credit Line
- The John R. Gerwig, Jr., Collection
- Drawing Instruments
- Data Source
- National Museum of American History
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