40005091, Marlborough, 220, Portrait (profile right): emperor (?). Laureate bust of a man., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 220, Chalcedony

[View larger image] [Add to photograph album]