Twenty-one crisp blue ballpoint signatures, some of the most desirable in the hobby, cover this Spalding Official Pro League baseball (NRMT). lncluded are: Medwick, Kuhn, Paige, Rice, Hoyt, Cronin, Feller, Ruffing, Musial, Lyons, Grove, Feeney, Greenberg, Gehringer, Hooper, Coveleski, Leonard, Appling, and all three living inductees from that year: Warren Spahn, George Kelly, and Monte Irvin. Each and every one is brilliant and worthy of a grade of 9/10 or better (many 10's). It goes with out saying that HOF induction balls this complete, from this era, and in this condition are indeed very rare, and this one is a beaut! Comes in its original Cooperstown display case.