1949 Leaf Cards Skip Numbered?

[Exhibitman]

I do not buy the idea that the FB and boxing were meant to be one set:

1. Leaf's boxing set has 49 cards (plus the famous pulled Graziano) on 1 sheet (7 x 7). No mixed sheets have ever been found. Every flipped sheet printing I have ever seen (wrong backs and double-printed fronts both) have the same configuration, i.e., the same two guys on the cards: Jeffries-Loughran, Fields-Baer, etc. The packs, wrappers and ads I've seen do not mention two sports, only boxing. There is no indication that the two were intentionally printed together or sold together.

2. If the FB and boxing were one set then why did Leaf make a boxing album? And why does it have space for 3x as many cards in it as are in the set?

No, I think greed is the reason. If certain numbers were missing the kiddies would buy more cards in an effort to fill in the set, and the album came with extra spaces to accommodate the many dupes that the kiddies would have as a result of fruitlessly busting packs to chase the missing cards.