1862 NGC PF 64 Liberia 1 Cent Rare Proof Coin POP 1/1 (18091803C)Proof Uncirculated Liberia large copper 1 cent coin. Certified by NGC to PF 64 (no RB or RD graded). NGC Population Census THIS COIN, Only 1 Higher! History: The American Colonization Society (in full, The Society for the Colonization of Free People of Color of America), founded in 1816, was the primary vehicle to support the "return" of free African Americans to what was considered greater freedom in Africa. It helped to found the colony of Liberia