DS, one page, 8.5 x 11, October 16, 1940. Unissued 1940 World’s Fair Academy of Sport attendance certificate, which reads, in part: “This is to Certify that…attended instruction at the Academy of Sport New York World’s Fair and he is hereby commended for his interest in Sport and his intentions to practice the ideals of Sportsmanship and Clean Competition as exemplified by the Baseball and Football leaders who have instructed him.” Signed at the conclusion by Ruth, and also signed by Ruth’s agent Christy Walsh. Scattered soiling, a few edge dings, as well as a few creases to corners and edges (upper left corner tip missing), otherwise fine condition. A seldom-seen memento of the home-run champion’s ever-enduring love of the game, and the young fans who would carry it into the future. Pre-certified Steve Grad/PSA/DNA and RR Auction COA.