Keywords: ambrotype case cased girl 1850s omeka public domain publicdomain drawing sketch This shows the ambrotype remove from the case and preserver and viewed under transmitted light on a lightbox. You can see how this technique relies on a very under-exposed negative. Simple leather faced case with velvet lining. Unknown provenance. Estimated late 1850s. This shows the ambrotype remove from the case and preserver and viewed under transmitted light on a lightbox. You can see how this technique relies on a very under-exposed negative. Simple leather faced case with velvet lining. Unknown provenance. Estimated late 1850s. |