An 18 carat reverse intaglio crystal brooch of a cat A reverse intaglio crystal brooch of a head study of black cat, set in a 18 carat and green enamel mount. Reverse intaglio crystals are commonly and erroneously often called Essex Crystals. Belgium, circa 1910. This is a SOLD item and has been left in the Public Domain for research purposes. Images are available for public use with an acknowledgement to www.hamsheregallery.com |