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
Does Quora Really Have All the Answers?
What is the most expensive baseball card that you own? - Quora
What (in your opinion) is the single most expensive sports card on the planet (You can use ANY grading companys website to show pops/reasoning etc!) : r/sportscards
How to know if your sports cards are valuable - Quora
What are the most collectible types of trading cards? - Quora
What makes a sports card valuable? - Quora
What are the most valuable sports cards? - Quora
Where can I buy sports card packs and have a good chance of getting a valuable card? - Quora
What are the ten most valuable baseball cards? - Quora