There are 10 SSP prize winning cards in the 1968 Atlantic Oil set. Here are a pair of them:
A $100 winner is an SSP on 11:
A $1 winner is probably the most commonly found:
I have never seen another Davis, the NL $100 winner, or the $2500 winner cards.
1949 Hages are difficult too and the Negro League players command a big premium: