You did not provide the serial number.
Impossible to answer without the serial number.
Impossible to value with only the serial number and no other information.
With the serial number that you provided,your Browning 16 gauge auto-5 shotgun was produced in the year 1929.
Your serial number indicates that your 16 gauge browning auto-5 shotgun was made in the year 1929.
On the bottom of the receiver forward the trigger
Your serial number indicates that your Browning auto-5 shotgun in 16 gauge was made in the year 1937.
Your serial number indicates that your Browning standard weight 16 gauge auto-5 shotgun was made in Belgium in the year 1947.
With the serial number that you provided,and assuming that we are talking about a browning auto-5 shotgun then your shotgun was made by FN of belguim for browning in 1909.
I am trying to find out the value of my Browning Acier Special C 12 guage Shotgun KG 8663 Serial number 307368
If we are talking about a Browning auto-5 shotgun in 16 gauge?Then the serial number that you provided indicates that your shotgun was made in the year 1950.
If that is the complete serial number, it was made in 1935. Value is $350-$650.