Model Associated with an Invention of James Powers, #310

Model Associated with an Invention of James Powers, #310

Usage conditions apply
This wooden model is associated with inventor James Powers. It is roughly the shape of a trapezoid, with a curved and notched bottom edge. It may be a pattern used to make a mold, which in turn were used to make pieces of this shape. The phrase "one off" indicates that one piece of the given shape is to be made. The phrase "hard compo" suggests that it 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 Powers tabulating equipment shown in 1992.3214.03.
Currently not on view
Object Name
Physical Description
wood (overall material)
overall:.3 cm x 11 cm x 4.6 cm; 1/8 in x 4 11/32 in x 1 13/16 in
ID Number
accession number
catalog number
Credit Line
Gift of Thor Dockweiler
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object