Patent model for D. H. Porter, “Improvement in Pivoting Teeth,” U.S. Patent 75,192 (March 3, 1868). Porter was a manufacturer of porcelain teeth in Bridgeport, Ct.
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.