This is a rare and valuable index card autographed by Clarence "Bubber" Jonnard, a former player for the 1920 Chicago White Sox, 1922 Pittsburgh Pirates, 1926-27, 1935 Philadelphia Phillies and the 1929 St. Louis Cardinals. The signature has been authenticated by the Professional Sports Authenticator (PSA) and is in GEM MINT 10 condition. The card features important aspects such as the player's name, team and sport, making it a highly sought-after item for baseball and sports memorabilia collectors. This original and authentic autograph is a must-have for any fan of baseball history and is a great addition to any collection.