What's there appears to be 2 cuts from exhibit 4 on 1 baseball cards, 3 Tom Mix strip cards or 3 cuts from 4 on 1 exhibits with Mix, the BB cards, and 10 of the boxing cards from the issue.
Very rare stuff. I've been tracking this issue for years. BB players Ruth and Meusel are in the lot; there's also a McGraw:
Can't tell if the red BB card in the top is JMack or not--looks like it could be.
I don't know who else is in the issue on the BB side besides those three and Tris Speaker. The Ebay group added a couple of new names to the boxing checklist for the issue, which now stands at 13 cards: Benny Leonard, Young Bob Fitzsimmons.
I assume there's a full deck of playing cards plus some jokers, so there should be a lot more to discover. It would be most interesting to see if the players are on the same card value each time [i.e., is Ruth always an Ace]. I've handled multiple specimens of a few of the boxers and they seem to be consistent with player-card value allocation.
It may be that the other subjects aren't sports. There are some entertainment cards that are intriguingly similar, though slightly different in the typesetting:
Oh, BTW, I won it.