Being that you said auto shotgun,then you have the Browning auto-5 shotgun that was made by FN in Belgium from 1903-1975.Your serial number indicates that your Shotgun was made in the year 1938.
Your browning auto-5 shotgun was made by FN of belguim for browning in 1957.
your browning auto-5 was made in 1925.
Check the receiver.
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.
If we are talking about a browning auto-5 shotgun,and the serial number is 1M not IM then your shotgun was a standard weight model auto-5 shotgun in 12 Gauge that was made by FN of belguim for browning in 1961.
if you are asking about a browning auto-5 shotgun?The year of production of your browning shotgun is 1928.
If we are talking about a Browning auto-5 semi auto shotgun?Then the serial number indicates that it was made in the year 1922.
your browning auto-5 shotgun was made in 1926 by FN of belguim for browning,with the serial number you provided.
Yes, they all hava a serial number.
Your Browning auto-5,12 gauge shotgun was made in the year 1948,with the serial number 265,711.
Usually on the receiver.