The 1972 Pro Stars Promotions set was issued in Canada, and offered 36 colorful subjects (plus a checklist card), with all team information excised in an oversized format that resembled a postcard. Not often encountered south of the Canadian Border, this PSA 6 of Roberto Clemente has some eye popping color and a very prominent production error artifact resembling a partial black border that appears on all examples of the Clemente card. The borders remain white and the card looks fabulous, with an unmarred reverse adding to the fun. Part of Clemente's Master and Super Sets over at PSA.