Head of Medusa. Artist: Cameo by Benedetto Pistrucci (Italian, 1783-1855, active England). Culture: Italian, executed in England (London). Dimensions: Overall (isible cameo): 2 1/8 in. (5.3 cm), 53.2 mm; Overall (in setting): 2 11/16 x 2 11/16 in. (6