Great Britain. Copper Proof Penny, 1826. S.3823; KM-693. George IV. Obverse Pistrucci's laureate portrait of king left. Reverse; Britannia. A very attractive coin. The copper proofs of this series are much rarer than their siblings the bronzed proofs. NGC graded Proof 63 Brown. WINGS. Estimate Value $900 - 1,000