Reverse Intaglio Crystal of a bull terrier.
Reverse intaglio crystal of a bull terrier by marcus in 14 caret gold. circa 1910.
Reverse intaglio crystals are commonly and erroneously often called Essex Crystals.
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