Here we have a rare, real photo-postcard of the 1939 Hall of Fame Induction gathering that was printed sometime in the 1950s. It was then signed by 10 Baseball Hall of Famers who, sadly, are no longer with us. Signatures in pen rate 7/10 overall while the postcard looks EX-MT. The sigs include Jimmie Foxx, George Sisler, Burleigh Grimes, Elmer Flick, Edd Roush, Heinie Manush, Casey Stengel, Zack Wheat, "Wahoo Sam" Crawford, and Joe McCarthy. It has been encapsulated by SGC and graded Authentic by JSA.