In 1968 Topps also produced a special run of some of it's baseball, football and hot rod cards for a Milton Bradley Win A Card board game. There were 76 cards in the baseball subset which had the same fronts as their regular set counterparts, except for 49 Brinkman and 66 Cox, which have yellow team names. They are often treated as variations to the regular 68 set, but in fact are just MB cards
The chief way to tell the difference between the MB cards and their regular counterparts are the backs. MB card backs have light yellow as opposed to orange/gold backs. However, this phenomena is sometimes repeated in higher series regular cards which occasionally are offered, incorrectly, as MB cards. The game cards go no higher than card 195.
Back to topic. There is one variation to the MB baseball set. Card 107, the second checklist can be found with either wide or fine mesh as in the different series examples above. Meaning you really need 77 cards to have a full MB set...and you may not get it by buying a complete game.
I owe knowing about this variation and getting one, to MB master collector Carlton Miller:
