Are unopened baseball cards more valuable than those that have been open, if so how do you determine what cards you have?
How can I determine the value of Topps baseball cards?
How do I make a baseball card case?
How do you get wax stains off of baseball cards?
What is the value of 1989 baseball cards?
Where can I find Golden Treasures baseball cards?
Where can I get reliable sports card appraisals?
collecting value
Question by smoc46 (26)
Is there a book I can get?
Answer by Bob8478 (1040)
You can determine the value of a baseball card by investing in and using a baseball card value/grading book. you can also have the card appraised.
Answer by Aumin (276)
To this day one of the best known Guides to get in order to find prices to old sports cards is called Beckett.
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