I had never seen  sheet metal pulled off and sold  but have seen lots of wheel weights  and  manuals sold that way    and  duals that you know were on it from day 1.   

what I  hate worse  is   a  thief at a sale...   yrs ago  a  great original super 77 / manuals  and owners papers  was at a  sale  in monrovia IN.

this  jocky from  Ky  hopped on the thing drove it to a messed up  straight 77  took the brake connector off the super  and drove it back .

he then  bid off the   old  77 ( junk really)  and the  guy that  got the super77  was  ripped off.