1971-D Kennedy Half 50c Mint Error Struck on 40% Silver Planchet 11.3g MS61 NGC
Lincoln (1909 to date). Jefferson (1938 to date). Roosevelt (1946 to current). Washington (1932 to date). Kennedy (1964 to date). Gold – Fractional & Pioneer. Silver Certificates Lg Size. Silver Certificates Sm Size. Proof & Mint Sets. 1971-D Kennedy Half 50c Mint Error Struck on 40% Silver Planchet 11.3g MS61 NGC. Struck on a 40% Silver Planchet 11.3 grams Extremely rare Transitional Alloy Error Kennedy Half Dollars were 40% silver between 1965 and 1970, including the 1970-D which was struck