CC0 · no rights reserved
Sickels Drop Cut-Off Valve Gear, Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This model was part of the application to the U.S. Patent Office for the patent issued to Frederick E. Sickels, of New York, New York, May 20, 1842, no. 2631.
National Museum of American History’s own descriptionCredit lineSickels Drop Cut-Off Valve Gear, Patent Model. 1842. National Museum of American History. CC0.
