40005286, Marlborough, 524, An elephant trampling on a large fish., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 524, Cameo, Onyx, 1st cent. AD