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Posted By: Tim James

After looking at the scan,and the paper the cards have been attatched to,I wouldn't be surprised if you have some "acid burn" on the backside of cards.If so,I would suggest keeping them pressed between two sheets of PH neutral matbaord.This will take a while,but the acid that has migrated from the mounting sheet will migrate back to the more neutral paper.These matboards can be bought at any reputable frame shop.Make sure you ask for museum quality,PH neutral,white matboard.There is a difference between "acid free" and PH neutral.