The Ultimate Set, an exhibit that opened in April of last year at the Baseball Hall of Fame, features the collection of Ken Kendrick, long-time collector and managing general partner of the Arizona Diamondbacks.
The group of 25 cards includes some of the hobby's most iconic and highest quality cards. The exhibit features cards from Kendrick’s collection, which he began as a child in the 1950s, including a 1952 Topps Mickey Mantle, 1954 Topps Henry Aaron, 1955 Topps Sandy Koufax and the rare 1954 Bowman Ted Williams card.
The centerpiece of Kendrick's collection, however, is the PSA 8 T206 Honus Wagner card once owned by Wayne Gretzky. The card changed hands for $2.8 million in a private sale conducted by SCP Auctions in September of 2007.
Kendrick got a chance to show off his collection for his fellow big league owners last week, and he also talked to MLB.com about how many cards he owns.