Steve-- I think it was the Steve Wilkie Topps 1971 Winners card. He posted it in here in a separate thread specifically on that set. It was unknown until it showed up on an uncut sheet that expanded the then existing checklist by several cards. The link in the last post of that thread includes a discussion about whether this is a set for pedophiles so I am not saying if I have any or not :-)
http://net54baseball.com/showthread....s+1971+winners