This husk is taken from a working guitar, which didn't have any play issue before dissembled. 

You get what you see.

Different from low tier epiphone SG models, it has stainless steel frets, ebony fretboard. The body has a true thick maple top on a mahogany back (see the picture). Built-in 9V battery case.

The crack at neck-body joint formed by itself, maybe due to the stress of the string or humidity change causing wood deformation. I don't know if it goes into the wood grain or not. No repair was applied and the guitar had no play issue.