A Roman carnelian intaglio. Circa 1st Century A.D. Photo Bonhams

The oval gem engraved with a profile portrait head of Athena wearing a crested helmet and aegis with snakes, bordered by a ΚΡΑΤΙΝΗ inscription, set in a stepped hollow gold ring, possibly ancient, finger size 'Z', the intaglio 19mm long. Estimate: £2,500 - 3,500, US$ 4,000 - 5,500, € 3,000 - 4,200 - Unsold

Provenance:: UK private collection, acquired in London in the 1990s.

Bonhams. Antiquities, 25 Apr 2012. London, New Bond Street www.bonhams.com