T-Square
date: label: date made
content: ca 1900
notes: label: Description
content: A wooden bar (6-1/8" x 2" x 3/4") is attached to a flat wooden handle (17-7/8" x 2" x 1/8") by nine wooden pegs. By the 17th century, draftsmen used T-squares to help them draw horizontal lines. The instrument was also used in conjunction with a set square or triangle to draw vertical and diagonal lines. The dating of other objects from this donor suggests this object was made about 1900. Compare to MA.328397 and MA.328398.
label: Description
content: Reference: Maya Hambly, <i>Drawing Instruments, 1580–1980</i> (London: Sotheby's Publications, 1988), 113.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
label: Subject
content: Drawing Instruments
label: Subject
content: Carpentry
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Squares and Triangles
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Eunice L. Hoffman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.328396
label: accession number
content: 272517
label: catalog number
content: 328396
objectType: label: Object Name
content: t-square
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 45.6 cm x 15.6 cm x 2 cm; 17 15/16 in x 6 5/32 in x 25/32 in