OAL Bobby Brown Baseball Autographed by Commissioner Fay Vincent. Lot 406. OAL Bobby Brown Baseball Autographed by Commissioner Fay Vincent. From Sept. 13, 1989 to Sept. 7, 1992, Vincent served as Commissioner of Baseball. His ballpoint signature is a 10 on a nm-m baseball. Authenticated by Kevin Keating. Winning Bid $61. Back to List Winning Bid $61 Back to List