The Roosevelt Dime, designed by John R. Sinnock, began mintage in 1946 and continues to be minted today.  This set of ten Roosevelt Dimes  was struck in 1957 at the Philadelphia Mint and graded in Proof 68 condition.  Composed of 90% pure silver, these  stunning coins  honor America's 32nd President Franklin Delano Roosevelt. Out of all 1957-P Roosevelt Dimes struck,  significantly less than 1%  have been graded in PF68  condition. With  such a low  Proof 68  population, these  1957-P Roosevelt Dimes  are  tremendous Condition Rarities.