Sports
The Most Valuable Baseball Cards
1968 Topps Rookie (Jerry Koosman/Nolan Ryan)
There are four versions of the Nolan Ryan rookie cards. A copy of this version, the 1968 Topps Jerry Koosman and Nolan Ryan card, with a grade 10 was auctioned off and went for $612,359. If you are wondering what caused this card to sell for so much money, it is because it is really rare. Almost 8,000 copies of this Topps Rookie card were submitted for professional appraisal but only one received this score. You can sell a grade 9 copy of this card for $20,000 to $30,000.