200001237, Tassie, 1237, LEDA RECLINING ON THE GROUND, ATTACKED BY THE SWAN, GROUNDLINE., Stosch, (Philipp, Baron), Tassie, J.; Raspe, R.E.: A Descriptive Catalogue of a General Collection of Ancient and Modern Engraved Gems,... (1791), 107,NO.1237,TRAY 20.2, 20.4, Sulphur