What is the age and value of a Belgian Browning 16ga Standard Weight shotgun in 95 percent finish all original with an extra barrel - Serial Number X-22800?

First lets start with the age of your Browning.With the serial number that you provided,your Browning auto-5 shotgun was made by FN of belguim for Browning in the year 1948.A Browning standard weight auto-5 shotgun in 95% condition will be valued at 450 dollars for a shotgun with a plain barrel,550 dollars for a shotgun with a matted rib(solid)barrel,and 675 dollars for a shotgun with a vent rib barrel.The extra barrel will bring you between 100-200 dollars depending again on the rib design and choke.