1958 D 10c Roosevelt Dime MS66 FT NGC Dark Toned 1 of 503 this grade.  370 in higher grades, total mintage 136,564,600.  Obverse and Reverse designer, John R. Sinnock, ASW 0.0723 oz .900fine silver composition, 2.5gr total weight, reeded edge, 17.9mm diameter.