When I was kid in Philadelphia, a friend of my Dads gave me these three proof sheets. I've had them ever since, and they have been loosely rolled up and in the closet all these years. They are not in perfect shape and have a few soft edges and creases in places, but they may interest you collector guys.
Read more detail on ebay. If this forum allows I can try and upload some higher resolution images -- I want to show the sheets as clearly as I can.
1971 Topps Baseball Proof Sheet uncut, each card appears twice (listing A)
http://r.ebay.com/pIXldR
1971 Topps Baseball Proof Sheet uncut, each card appears twice (listing B)
http://r.ebay.com/2wE7mx
1971 Topps Baseball Proof Sheet uncut, each card appears twice (listing C)
http://r.ebay.com/wxoEWW