Official Rawlings American League baseball signed in ballpoint by twenty-one members of the 1989 World Champion Oakland Athletics. Signers include: Tony LaRussa (ss), Mark McGwire, Jose Canseco, Carney Lansford, Doug Jennings, Terry Steinbach, Mike Moore, Mike Norris, Felix Jose, Tom Reynolds, Curt Young, Rick Honeycutt, Ken Phelps, Ron Hassey and Lance Blankenship. Ball also bears a clubhouse signature of Rickey Henderson. In fine condition. Great ball with room left for remainder of team for the diehard fan. LOA Steve Grad/PSA/DNA and R&R COA.