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					Originally Posted by Scott Garner  Who's signature?
 If I was absolutely sure that I wanted to try to remove the dirt mark, I would try a Magic Rub eraser.  These are sold at all art supply stores and most likely Staples and Office Max.  I have successfully used these on baseballs with great results in the past.  These will not damage a ball if used sparingly.
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 Agree. White art eraser or a microfiber cloth will clean up light surface dirt. They will not remove stains embedded in the leather.