ROMAN BANDED AGATE INTAGLIO DEPICTING MEDUSA IN SOLID HIGH KARAT GOLD AND SILVER RING Ca. 100 BC - AD 100. A banded agate intaglio engraved with the head of Medusa, shown facing forward with curling hair framing a rounded face. The gemstone is set into an oval bezel forming the apex of a two-part ring, with the upper portion cast in silver and the lower half formed in solid gold. For similar see: The British Museum, Museum number 1923,0401.697. Size: D:19.15mm / US: 9 1/4 / UK: S; Weight: 18g Provenance: Property of a London Ancient Art Gallery; formerly in the famous Alison Barker collection, a retired London barrister; acquired between the early 1960s to 1990s.