W ILL THIS D AMAGE MY BOOK? This is an occasional effect produced by the inner and outer cases being in direct contact with one another. The visual effect is similar to oil on a water puddle because of the two plastics. If you gently separate the two pieces or insert a piece of paper in the side of the case, this should remove this effect.Ultimately it is not anything that is in direct contact with your comic, nor will it affect the comic's condition over time. All of my signatures were obtained by me at conventions/private sign ings or through a reputable 3rd party company (like Dynamic Forces). I stan d by authenticity of all the signatures I se l l. PLEASE CHECK O UT MY OTHER AUCTIONS. The item "Captain America #115 CGC 8.5 1969 CLASSIC RED SKULL COSMIC CUBE COVER" is in sale since Saturday, July 11, 2020. This item is in the category "Collectibles\Comics\Silver Age (1956-69)\Superhero\Captain America". The seller is "onestopcomic" and is located in Delray Beach, Florida. This item can be shipped worldwide.