King, C.W.: Antique gems: their origin, uses, and value as interpreters of ancient history; and as illustrative of ancient art: with hints to gem collectors (1860): p. 217
Cook, A.B.: Zeus a Study in Ancient Religion (1925): vol. 3, 641, fig. 438
Comments: PONIATOWSKI: EUTYCHES SON OF DIOSKOURIDES. THE GEM IS LISTED BY KING AND COOK AS: Head of lo