1948 New York Yankees Team Signed Baseball. Signed in black fountain pen on this Official American League William Harridge baseball. This autographed baseball comes with a certificate of authenticity from James Spence Authentication. Here is a list of names on the ball: Joe DiMaggio, Phill Rizzuto, J. Page, A. Reynolds, E. Lopat, R. Gumpert, D. Starr, V. Raschi, B. Johnson, T. Henrich, R. Houk, J. Lindell, C. Keller, C. Dressen, G. Stirnweiss, and a clubhouse Yogi Berra.