1877 Liberty Seated Dime. Proof-66 (PCGS). CAC. OGH. Richly and originally toned in multicolored iridescence, the bolder and more varied colors are reserved for the obverse. This is a truly lovely, premium quality Gem with a full strike and modest cameo finish further enhancing already strong eye appeal. At the assigned grade level, it is difficult for us to imagine a more desirable survivor of this 510-coin Proof issue. Outstanding!