40005027, Marlborough, 493, Portrait (profile right): Elagabalus (?). Radiate bust of Elagabalus? The back of the bezel has a cameo head of a young woman, in white on a blue enamel ground., Walters Art Museum, Baltimore, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), 42.1073, Citrine, Early 3rd cent. AD?