200001456, Tassie, 1456, DOUBLE BUSTS OF JUPITER SERAPIS AND ISIS (WITH DIADEM?), DRESSED, IN PROFILE., City of Leipzig, Tassie, J.; Raspe, R.E.: A Descriptive Catalogue of a General Collection of Ancient and Modern Engraved Gems,... (1791), 119,NO.1456,TRAY 23.2, 23.4, Cornelian