National Museum of American History
Patent model for printers' quoins
Schmid, Ernest A. · ca 1892
This patent model demonstrates an invention for printers' quoins combined with sidesticks, adjusted by wedge-shaped nuts; the invention was granted patent number 483792.
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.