This gelatin-silvered photograph shows an early version of the pantograph card punch that Herman Hollerith patented in 1890. The photograph is matted, and has a glass cover and wooden frame.
Four places on the photograph are marked in red ink: 2.
For related object, see MA.312896.
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.