1987 Topps and 1990 Topps

[mrrosado]

I got a good deal on two of these sets but I noticed the cards are curved from storage. Why does this happen? Will these grade lower? I'm obviously after the Frank Thomas and Barry Bonds RC.

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[pwaldo]

They are curved because they are old cheap cardboard that absorbs moisture over the years. I wouldn't think they would grade lower but if you have a problem with this or think you will just put the key cards inside a penny sleeve and a top loader. After awhile they will return to normal. Or put a heavy book on a large stack of them. That will straighten them out.

[stlcardinalsfan]

yeah all of them eventually curve from age and cheap production. A lot of people store old cards in their garage, which is a horrible idea because of the weather conditions affecting the cards