Nolan Ryan/Jerry Koosman – 1968 Topps Rookie
Similar to the Pete Rose rookie card, if you have a copy of the 1968 grade 10 duo card of Nolan Ryan and Jerry Koosman, then you are one lucky individual. This card is so unique as 8,000 weren’t sent for approval, but only one got a score like this. With such rarity, this card was auctioned off for $612, 359. If you have a grade 9 card it can also sell for around $20,000 to $30,000.
Nolan Ryan/Jerry Koosman – 1968 Topps Rookie
Frank Thomas – 1990 Topps Error
Back in the ’90s, the most valuable card to own would be the Frank Thomas card from the Topps set. This card has no name on the front and is the reason why it’s so special. Owning this card showcasing the Hall of Fame member Thomas could result in you earning something big, we’re talking four or five figures.
Frank Thomas – 1990 Topps Error
