1876 Liberty Seated Half Dollar. Proof-65 Cameo (NGC).Splashes of vivid toning greet the viewer from both sides, the surfaces uncommonly smooth and well preserved for a Proof half dollar of this type. Bold field to device contrast provides further appeal. This issues relatively high mintage of 1,150 Proofs was achieved in anticipation of increased sales during the United States centennial. Now, as then, examples have been popular with collectors.