Difference in value of cards per grade level
Hi all,
I'm new to collecting pre ww2 cards and was wondering what a ball park bump in value cards get by going up a level in grading? The specific example I'm thinking of is a t206 minor leaguer that I have the option of buying at SGC 3 or 4. Both cards are solid at their grade level. The difference in price between the two is 6 bucks.
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