Geometric Model by A. Harry Wheeler, Equilateral Triangle Transformable into Square, Plane Dissection
date: label: date made
content: ca 1932
name: label: maker
content: Wheeler, Albert Harry
notes: label: Description
content: The four plastic pieces fit in metal container with cloth-lined lid. The pieces may be arranged as a square or an equilateral triangle. Compare MA.304723.764, MA.304723.819, MA.304723.766, and MA.304723.823. This small version of the model has no hinges.
label: Description
content: This is similar but not identical to Wheeler's Model 4ST. Two drawings for that puzzle, both dated January 17, 1932 and April 26, 1932, are in 1979.3002.43, folder 1. The drawings refer to the <I>Mathematical Gazette</I> - no volume or page is given. A drawing in 1979.3002.53 dated January 5, 1932 refers to this model as 4C.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Plane Dissections
creditLine: label: Credit Line
content: Gift of Helen M. Wheeler
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304723.819
label: accession number
content: 304723
label: catalog number
content: 304723.819
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: cloth (overall material)
label: Physical Description
content: green (overall color)
label: Physical Description
content: cut (overall production method/technique)
label: Measurements
content: average spatial: .7 cm x 4.7 cm x 3.5 cm; 9/32 in x 1 27/32 in x 1 3/8 in