What are the most valuable sports cards? - Quora

Answer (1 of 9): The most expensive cards would be the old cigarette-tobacco cards from the early 1900′s. They are still available on the secondary market, but with anything collectable, condition is everything. The greats of baseball like ty Cobb, cy young, nap lajoie, and Christie matthewson ar

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The Most Valuable Sports Cards of All Time

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