Posted as a public service to potential bidders on 155210883827. In my personal opinion, based on over 30 years of looking at eBay auctions and pictures, the interior cavities have been cleaned with a wire brush and have suffered for it.
FYI.
The glints of light at the sharp edges (circled in white) are in the indicator I look for. A rounded edge reflects light. A sharp corner does not.
Pic:
https://i.ibb.co/Qrt45HB/s-l1600.jpg