Home / Collections / Podcast & Blog » 1860s adding machine

Collections

Collections Up Close

December 5, 2012

1860s adding machine

Filed under: Item of the Day — Lizzie Ehrenhalt @ 9:30 am

1860s adding machine

Adding machine of the type patented by George B. Fowler on July 14, 1863.  Users performed operations by moving a sliding bar with a pin or pen tip.

For details, view the adding machine in our online collections database.

Bookmark and Share

Comments are closed.



An Ounce of Preservation: A Guide to the Care of Papers and Photographs