Patterns and Drawings for Models in Spherical Trigonometry

Patterns and Drawings for Models in Spherical Trigonometry

This folder includes patterns and drawings for the following models:
Polar Triangles - PT* - no date
Intersecting Polar Triangles - I P T* - April-17-1945
no labels
PTc* - drawn July 11, 1917 - compare 304723.688 - drawing only
PTa* - drawing only - no date
MSA* - measure of a spherical angle - no date
PGC* - Pole of a Great Circle - no date, no pattern pieces
Currently not on view
Object Name
Sheets and Patterns
date made
1917, 1945
associated dates
1945 04 17 / 1945 04 17
Wheeler, Albert Harry
Wheeler, Albert Harry
associated place
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
metal (overall material)
tan (overall color)
silver (overall color)
average spatial: 21 cm x 30 cm x .5 cm; 8 9/32 in x 11 13/16 in x 3/16 in
ID Number
catalog number
nonaccession number
Credit Line
Gift of Louise D. Campbell
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Spherical Trigonometry
Data Source
National Museum of American History
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