What is the age and value of an American Browning A16 gauge standard weight 80 90 percent finish without pad poly choke Serial A8105?

Your browning standard weight auto-5 shotgun is valued at between 325-550 dollars dpending on what type of barrel your shotgun has.plain barrel is 325-375 dollars.Solid matted rib barrel is 375-450 dollars,and if you have a vent rib barrel then the value is between 475-550 dollars.