A Rare 18th Century Porphyry & Gilt Metal Snuff Box, Continental Circa 1770
Located in Ottawa, Ontario
The base & hinged lid are fashioned from panels of porphyry, specifically that of ‘Rhomb’ Porphyry, which is a relatively rare volcanic rock with very distinctive phenocrysts (cr...
Late 18th Century George III Antique Porphyry Snuff Boxes and Tobacco Boxes
Porphyry, Ormolu










