My friend owns this antique carved agate or carnelian intaglio crest and we've been unable to identify the possible family. We've searched every possible angle we could think of with our limited knowledge. Have tried keywords like wings, crosslets, arm (cuffed?). Some of the Fairbairn's book is searchable on Google books among other old heraldic texts but so far have come up empty. Here are some pics. Many thanks to anyone that can help or help point us in the right direction.