This is an 8x10 photo signed by gold medalist Bob Mathias. This photo is signed boldly in black felt tip marker and was signed at a private signing. This autograph is guaranteed authentic and comes with a certificate of authenticity from PSA/DNA, the industry's most respected autograph authenticator. This item comes with a tamper proof PSA/DNA numbered decal and a numbered certificate of authenticity. The autograph is GUARANTEED AUTHENTIC. PSA/DNA# J02473 | 
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