This set of 42 postcards contains some of baseball's historically great players. Of the 42 postcards, 10 have authentic signatures, including those of Hall of Famers Mickey Mantle, Ted Williams, and Yogi Berra as well as Roger Maris and Mel Stottlemeyer. All of the signatures rate at least 6/10, with Whitey Ford's rating 9/10. Each postcard measures 5.5x3.5". The collection is EX.