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BIOPREDATION - MOLD
Defect
A book that becomes wet can become moldy. The mold grows on natural paper (like that produced from trees or cotton). It looks powdery and most commonly is black in color. Books that show evidence of mold must be handled carefully and should be kept away from other books.
Pictured are black mold on the side of a book, and black mold at the spine on the front endpapers.
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