1936 Walking Liberty Half Dollar. Proof-66+ (PCGS). CAC. Satiny surfaces harbor serene golden iridescence that gives way to areas of bolder copper-russet patina at the borders. An exceptional Gem Proof from the first year of Proof coinage in the denomination since 1915. Just 3,901 examples of the date were produced in the Proof format, and survivors today are eagerly sought, especially at the Gem level offered here.