From the Perfection Collection of Proof Seated Half Dollars. The Number 1 PCGS Registry Set with CAC Approval. From a very low mintage issue of just 510 coins struck in proof format, this beauty is the finest known with non cameo surfaces. Expertly preserved mirrors display beautiful, silvery reflectivity with blended tones of blue, olive, and violet that present in a crescent on both sides. Wonderful eye appeal!