Lou Brock retired as baseball's all-time stolen base champion with 938 - a total that has since been surpassed by Rickey Henderson but is still a National League benchmark. The fleet-footed outfielder signed all of these official Major League baseballs with the "SB 938" notation. The signatures on the sweet spots grade 8/10 ballpoint pen. Of the 46 balls, 21 have been signed with the addition of "NL SB Champ 938." Mostly are NRMT with some having slight toning.