Sierra Leone
British Colony copper Proof 20 Cents 1791 PR64 Brown NGC, FT4b, KM4a. A visual masterpiece with somewhat evenly-toned chestnut surfaces that absolutely ignite with shades of electric blue, blazing magenta, and glowing champagne color when placed under a light. While the crisply-struck, illustrative design motifs appear bold from all angles, the surrounding mirrors glisten with watery pools of iridescence. Bordering on Gem, and in our opinion worthy of the title, this stunning selection absolutely engages the eye.
Estimate: 2000-3000 USD