This is an Official American League Baseball that has been hand signed by 25 Members of the 1987 Seattle Mariners. There are 25 Total Signatures Including Dick Williams, Ozzie Virgil, Phil Roof, Scott Bradley, Frank Howard, Mike Kingery, Ed Nunez, Phil Bradley, Ken Phelps, Alvin Davis, Bobby Tolan, Bill Connors. There is toning on the baseball as shown. This item is guaranteed to pass any third party authentication company including Beckett, PSA/DNA and JSA authentication.