The 1977-P Roosevelt Dime seems like a common coin since it was struck in the late 1970's and especially since it has a large mintage of over 375 million coins struck. This is true for coins in circulated grades up to about MS64 or MS65 condition. However, in grades of MS67 and higher it is very difficult to find as there are less than 100 examples known. With Full Bands it is even scarcer, and in MS66 FB there are less than a dozen known. In MS67 FB it is the highest grade available with none being graded higher.