Porcelain etching self-portrait done for wide public distribution by Samuel Colt 1855.
original photograph by P. Graff 1855, etching 1855 Berlin. 111 exact duplicates made.
<a rel="nofollow" class="external text" href="https://historical.ha.com/itm/antiques/decorative-americana/rare-oval-lithophane-portrait-of-col-samuel-colt/a/6194-40166.s">Rare Oval Lithophane Portrait of Col. Samuel Colt.... Antiques - Lot #40166 - Heritage Auctions</a>