40004788, Marlborough, 119, Bust of a young Apollo, laurel-wreathed, holding a crook or pedum?, Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 119, Cornelian