This object was collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke and held by the Museums of the Peaceful Arts in New York City before coming to the Smithsonian. The black and silver-colored metal component consists of eight number wheels on a frame. Each wheel is moved by moving a lever and spring mechanism. Underneath seven of the wheels is a metal cylinder, with all cylinders protruding from a common shaft.
Compare to 321541.
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.