This gun was made in 1959
Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Auto 5's with poly-chokes, compensators and recoil pads (other than Mag 12's) will reduce value. Near mint guns and original box will command an extra premium.
Recommend taking it to a gun shop for appraisal
No such model number.
Your Browning auto-5 shotgun with the prefix of 70s to the serial number identifies that your shotgun was made in Belgium for Browning in the year 1970.
Entirely possible.
By the serial number.
Your browning auto-5 shotgun was made by FN of belguim for browning in 1957.
You did not provide a serial number. You will have to call Browning.
Your sweet sixteen browning auto-5 shotgun was made by FN for browning in 1963.
Serial number 1
by the serial number on the bottom of the receiver
Your belguim made browning auto-5 standard weight shotgun was made in 1962.
The prefix of 2S indicates that you have a Browning Sweet Sixteen auto-5 shotgun that was made in Belgium for Browning in the year 1962.
It was made in 1949.