COLLECTION OF ROMAN AND LATER STONE GEMS AND CAMEOS DEPICTING GODS AND NOBLEMEN. Ca. AD 1 - 300 and later. A collection of four stone gems and cameos, including, from left to right: a rectangular bloodstone gem carved with a helmeted bust of the god Mars in profile; an oval two-layer agate cameo with a bearded male head in left profile set in a plain gold frame; a pale green rectangular gem carved with a helmeted bust; and a small stone cameo carved with a female head in profile. For similar see: D. Del Bufalo, Catalogo illustrato della glittica nella collezione Santarelli, Inv. 25/52b; 202. Size: 12-21mm x 9-17mm; Weight: 8g Provenance: Private UK collection; acquired on the London art market; formerly with R. Unger, Parthenon gallery, 1990s.