Thread: 1951 Bowman Mantle PSA 7(OC) on PWCC tonight
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Old 01-17-2020, 05:56 PM
steve B steve B is offline
Steve Birmingham
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Location: eastern Mass.
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Another data point is that I've had a couple boxes of junk cards in the carriage house, which was for a time pretty damp. For maybe 22 years? They aren't warped at all.
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