ROMAN RED JASPER INTAGLIO DEPICTING A BIRD ON A LABRUM IN SILVER RING. Ca. AD 300 - 400. A red jasper intaglio engraved with a bird standing on the rim of a labrum, the circular gemstone bordered by a narrow bevelled edge. The intaglio is set in a silver ring with a broad bezel and tapering hoop. Size: D:19.56mm / US: 9 3/4 / UK: T; Weight: 8.8g Provenance: Private London collection, acquired on the UK art market, 1990s.