The checklist is complete by the way, there will be no more baseball players found. You can tell from the number/letter sequence that Rotograph used, the postcard right before and after the ballplayers are both actor cards.
"Rotograph Series" notation is also found and not found on each card. I once had the crazy idea of putting together a master set
Rotographs are all tough (with the exception of the team card), but some are more difficult than others. Griffith and Puttmann are by far the toughest, with the other 6 players being about the same.
That pricing above makes no sense. Taylor worth more than Chesbro and McGinnity? Team card is the least valuable, not the most.