1951 Franklin Half Dollar. Proof-66+ Ultra Cameo (NGC). CAC. The 1951 is an early Proof Franklin half dollar issue that is seldom offered with such amazing field-to-device contrast as seen here. Frosty and fully defined, the design elements are set against a backdrop of deep reflectivity in the fields. Untoned with radiant icy white surfaces, this pristine specimen is sure to sell for a strong premium to a discerning Proof Franklin half dollar enthusiast. Beautiful!