40004577, Marlborough, 120, Apollo, wreathed, with cloak at back, walking on tiptoe playing the lyre. Ground line., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 120, Cornelian, 17th cent.