This is an Official American League Baseball that has been hand signed by 26 Members of the 1978 Seattle Mariners. There are 26 Total Signatures Including Vada Pinson, Glenn Abbott, Paul Mitchell, Rick Honeycutt, Jim Todd, Dick Pole, Don Bryant, Shane Rawley, Wes Stock. This item is guaranteed to pass any third party authentication company including Beckett, PSA/DNA and JSA authentication.