Cameo Portrait of Signet Ring Description: Ornately carved signet ring of portrait of 18th Century African-British Abolitionist and writer (1729-1789) Ignatius Sancho. Size 11.25 US ring size. Category Other - Jewelry Reference Number 01217 Maker/Artist Unknown Materials Gold and carved agate stone Measurements Height: 1.25 in; Width: 0.5 in; Weight: 18 grams Time Period 1820 Additional Information: ring; hammered gold inside of band; Images Scroll to Zoom