200000970, Tassie, 970, JUPITER, STANDING WITH A STAFF, THE AEGIS DRAPED OVER THE SHOULDER, HOLDING A THUNDERBOLT, Tassie, J.; Raspe, R.E.: A Descriptive Catalogue of a General Collection of Ancient and Modern Engraved Gems,... (1791), 89,NO.970,TRAY 16.1, 16.3, Cornelian