My friend's 2005 Gibson Les Paul standard. He asked me to check the truss rod, but I'm not too sure as to what this is.
Is this normal? The screw hole seems to be too close to the cavity, and I've never seen a truss rod cavity with a small piece of right in front of the truss rod. Is this normal? Or was there work done on this? My friend did buy this used. Anyways, any wisdom would be appreciated. THANKS!