Model Associated with an Invention of James Powers, #311

Model Associated with an Invention of James Powers, #311

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This wooden model is associated with inventor James Powers. It has projections at the two sides (one broken off) and at the bottom, as well as a piece painted black at the top. It may be a patterns used to make a mold, which in turn was used to make pieces of this shape. The phrase "one off" indicates that one piece of a given shape is to be made. The phrase "hard compo" suggests that the piece was to be made from a hard composition plastic. The number on the pattern does not match up with the numbers of the parts of James Powers tabulating equipment shown in 1992.3214.03.
Currently not on view
Object Name
Physical Description
wood (overall material)
overall: 8.2 cm x 20 cm x 5.5 cm; 3 7/32 in x 7 7/8 in x 2 5/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Thor Dockweiler
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Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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