THIS 1989 SEATTLE MARINERS MAGAZINE PROGRAM IS SIGNED BY MR. MARINER, ALVIN DAVIS. IT IS SIGNED IN BLUE. IT WAS OBTAINED INPERSON. A COA FROM JETAUTOGRAPHS IS INCLUDED WITH THE ITEM. FOR MORE INFORMATION ON WHEN AND WHERE ITEMS WERE SIGNED PLEASE CONTACT ME. PLEASE LET ME KNOW IF YOU HAVE ANY QUESTIONS. THANK YOU FOR YOUR INTEREST.