200001249, Tassie, 1249, HEADS OF CASTOR AND POLLUX (DIOSCURI) IN DOUBLE PROFILE, STARS ABOVE., Stosch, (Philipp, Baron), Tassie, J.; Raspe, R.E.: A Descriptive Catalogue of a General Collection of Ancient and Modern Engraved Gems,... (1791), 108,NO.1249,TRAY 20.2, 20.4, Sulphur