The serial number is on the receiver.
The earlier the better. 1 is in the Browning Museum.
1966
Your serial number indicates that your Browning auto-5 16 gauge shotgun was made in the year 1948.
84 years old
I found the answer on the Browning website. Serial numbers in the range of 387000-438000 were made in 1953. Here's the website for all Browning gun's serial numbers: http://www.browning.com/services/dategun/index.asp Here's the site for the Auto-5 http://www.browning.com/services/dategun/detail.asp?id=13
The serial number comes up a Browning Auto-5 semiauto shotgun. Browning began manufacturing the Auto-5 in 1902. All serial numbers below around 228,000 are pre-WW2 manufacture, and only Browning can provide at best a guess on the age of the gun.
with the serial number that you have supplied,your Browning auto-5 shotgun in 16 gauge was made in the year 1934.
50-500 usd
Browning never used the prefix letter B on any of there shotgun,s serial numbers.
Your serial number indicates that your Browning standard weight 16 gauge auto-5 shotgun was made in Belgium in the year 1947.
You did not provide the serial nubmer. You will have to call Browning.