Graded by PSA GEM MINT 10. Of the just over 1,800 1966 Topps USA TEST hockey cards evaluated by PSA, THIS IS THE FIRST EVER CARD to GRADE PSA 10. Submitted by Leland's, this recently-graded example is perfect in every way, with four razor sharp corners, superb color, perfect centering and extremely smooth surfaces. And it is of #66 John McKenzie, the very difficult last card in the rare TEST issue card set, and a Boston Bruins player to boot, who helped the Bruins win two Stanley Cup titles. Perfect in every respect, this card is the sole PSA GEM MINT 10 example from this very rare TEST issue set to be graded by PSA.