I'm selling a 2007 high end TLK Dreadnought guitar case that I bought new. It was the original case that came with my Collings guitar (guitar not included). Over the years, the inside fabric of this case has developed a slightly sticky/tacky residue that transfers to my guitar when I pull it out of the case. The tackiness wipes off relatively easy from the guitar but due to the fact that I'm worried the case might eventually damage my guitar, I bought a new case. I have tried using a damp cloth to wipe off this tackiness but that did not work. Maybe someone knows a simple solution to fixing this issue. The case is very high end (at least $500 new), I hate to get rid of it, but I don't know how to fix/clean this issue. In my description, it's listing this brand as a Gibson, it's not, it's a TKL with a Collings badge on it. Other than the tacky/sticky interior lining the case is in perfect order.