Are unopened baseball cards more valuable than those that have been open, if so how do you determine what cards you have?
How valuable are baseball cards?
How valuable are Michael Jordan cards?
What are error cards?
What are the most valuable NBA cards?
What is the value of a Brett Favre rookie card?
Why did Steve leave Blue's clues?
I would like to sell mine.
Depends, if it's his rookie card, then that could be valuable. if he has a mvp card, that could be valuable as well. check with a collector.
It depends on the card, if it is a rookie, autographed, or very limited, then you can expect more from just a mass production card.
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