arthistoryfeed:Amethyst intaglio with an engraved portrait of Apollo, ca. 1st Century BC - 1st Centu
arthistoryfeed:Amethyst intaglio with an engraved portrait of Apollo, ca. 1st Century BC - 1st Century AD. #Roman Source: State Hermitage Museum https://www.instagram.com/p/CHIepoQFAqp/?igshid=z4p2iaymedrq -- source link