A fragmentary Onyx Cameo of Athena Parthenos, circa 1st Century A.D., or later

of slightly convex form in front and concave in back, probably from a larger composition, the goddess facing left and wearing a scaly aegis with gorgoneion, pendant earring, and helmet with couchant sphinx supporting the crest, Pegasos on the side, four prancing horses in front, and fragmentary turned-up cheek-guard, her long hair flowing down to her shoulders from beneath the broad neck-guard.