Sports

The Most Valuable Baseball Cards

1989 Upper Deck Rookie (Ken Griffey Jr.)

This is the most important and probably the most recognizable rookie card of Ken Griffey Jr., one of the greatest all-around baseball players in history. Across the 1990s, many people believed that this 1989 Upper Deck rookie card would become one of the priciest baseball cards of all time. This may not have come true, but the card is among the most iconic in the past three decades. You can expect to get $400 for one that has a good grade. However, like many Griffey rookie Cards, it is subject to a hidden flaw – the reverse side has a factory wrinkle.

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