For starters that butt plate is not original obviously, and one can assume that the stock has been cut to some degree. You should measure it...the lop to the end of the wood, and also to the end of the new butt plate. Next comes the chokes...if the guy was a target shooter, did he open up the chokes or are they as stamped inside on the left when you open the breech. If the current choke configuration is not as is stamped, then that is an issue. many target shooters would buy a typical mod and full gun then open them up for skeet. Then comes the condition of the barrels and the lever positioning when the gun is locked up will tell you what sorta shape the hinge pins are in. It is a long tang round knob which is desirable...the best. I have paid around the $1000 mark for good clean honest superposed guns. Often you will get the original case...which is a real plus, along with the warranty stuff which came in a little plastic envelope, and maybe the owners booklet from Brewing too. Also a couple sets of keys for the case. Without knowing if the butt was chopped or if the chokes were diddled with, I would think what you have there is a $750 gun. If the lop is 14.5 to 14 5/8, then we can relax on that issue. Be nice to have the original butt plate set-up or Browning pad, but they can be purchased online lots of places. As for the case...well...they fetch $400 USD on average, as collectors like their original boxes. If you are lucky on the LOP and the chokes...what you have is a $999 gun in Canada. If it has been tweaked and chopped...well...$700 plus would be my number.
Best of luck!!
