One of the ultimate baseball autograph pieces to collect, these yellow style postcards feature the Cardinal great's well-earned plaque from the National Baseball Hall of Fame. All of them are signed by Lou Brock in black Sharpie. Emanating from his own collection, there is no doubt as to their authenticity. The signatures average 8/10 condition-wise and the plaques themselves are mostly NRMT. The hoard of a lifetime.