1950's Hall Of Fame Induction Ceremony Autographed Memorabilia. Check out 1950's Hall Of Fame Induction Ceremony Autographed Baseball With 12 Signatures Including Ty Cobb, Frank Home Run Baker, George Sisler, Joe DiMaggio, & Pie Traynor - JSA Authenticated -. The item has been personally hand signed by and comes complete with a Certificate of Authenticity from JSA. This official Baseball that has been personally hand signed by the 12 members of the 1950 Hall of Fame Induction Ceremony. Signatures include Ty Cobb, George Sisler, Joe DiMaggio, Pie Traynor, Frank Homerun Baker, Joe Cronin, Jim Konstanty, Frank Malzone, Joe Brown, Mrs. Christy Mathewson & Mrs. John McGraw. It has been authenticated by JSA and comes with their authentication sticker and matching full page certificate of authenticity. JSA is the leading third-party authenticator in the autograph industry. This baseball is in excellent condition and is a perfect piece of baseball history. This signed baseball is a great gift idea for any sports fan or baseball memorabilia collector. Commemorate the great career of with this ball, or check out other souvenirs at SportsCollectibles.com for more products autographed by. When it comes to MLB Memorabilia, SportsCollectibles.com offers a wide selection of Autographed Baseballs. Protect your baseball with a Deluxe Baseball Golden Glove Case. A display case protects your baseball from dust and UV rays. Product will ship in 1-3 business days with free shipping on orders over $200. Buy with confidence as this is an authenticated MLB Legends autograph.