George Gervin Autographed 1981 Topps Card - San Antonio Spurs. Comes with a 100% guarantee, and we also guarantee this will pass ANY authentication such as PSA/DNA, JSA. This autograph has also been added to our Rackrs Autograph Reference Guide, which can be found at rackrs.com/autograph. Our guide has over 16,000 verified autographs from every major sport. Please feel confident when purchasing from us. Please add $2.50 s/h.