Hello Everyone. I know very little about leather restoration and care but would like to learn how to repair a leather photol album, if possible. The book in question was stored on a shelf between two other albums that I believe had plastic protective covers. They were pretty tightly pressed together for some time. The covers on the album have markings on them that contain a sort of cris-cros pattern where the color seems to have faded leaving a grayish-white appeance.

I tried wipng it down and also tried some leather dye but nothing changed. Is there anything I can do to get rid of these marks? I've attached pics of the covers.

Thanks for any help,

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