Hey Dan,
Not sure if you are aware, but there are actually at least 4 different versions of the 1968 Yaz checklist.
The two cards on the left have the same backs (with the inclusion of the word "GAME"). But the round pictures are cropped differently. The top card shows a good amount of the 'B' on his hat cropped off and a sliver of his bat (at lower right) is visible. The bottom card has a much more fuller 'B' and the bat is unseen.
The two cards on the right have the same backs (no word "GAME"). And again the round pictures are cropped differently. The top card shows a good amount of the 'B' on his hat cropped off and a sliver of his bat (at lower right) is visible. The bottom card has a much more fuller 'B' and the bat is unseen.
1968yazclvar2.jpg