Featured CAMEOS: Show & Tell or Ask & Answer

Expert opinions were unanimous that the glass intaglio is a replica of the amethyst in Paris. They were also unanimous that the glass is probably/definitely Roman, until one of them reversed herself after I demonstrated that the signature on the amethyst was not captured in the glass at all. Then she decided the glass had to be a later production. There was also a guy who agreed on the source image but struggled with dating the glass to Roman times strictly because of the extreme rarity of known stone-glass pairs.