Is it possible that the finish of my now 5 year old Gibson would have got cracked as a result of an impact like a mic stand or a beer bottle or is it just aging? I also have an ES 339 and I remember a beer bottle hitting my other Gibson too but it didn't get damaged. The places where the bare wood can be seen are just on the upper edge of the body of the guitar, so the edge facing the hand not the belly of the player which leads me to the conclusion this couldn't have happened so precisely. I mean a non-intended impact is random. The instrument would have gotten damaged in other places not just on the edge moreover on just one of the edges.