This is an Auto-5 Browning made in 1953
If your Browning auto-5 shotgun is a 12 gauge model then it was made by FN of Belguim for Browning in 1907.If you have a 16 gauge model,it was made in 1921.
With the serial number that you provided,your Browning model auto-5 shotgun in 16 gauge was produced in 1956.
Auto 5
Browning did not make a Model 755. Savage made a 755 that was similar to the Auto 5.
You will have to call Browning to find out.
With the serial number that you provided,your Browning auto-5 shotgun was made by FN of Belguim for Browning in 1926 if you have a 12 gauge model.If you have a 16 Gauge model then it was produced in 1929.
If you have a 12 gauge model auto-5 Browning shotgun?Then it was produced by FN of Belguim for Browning in 1923.If you have the same shotgun in 16 gauge,then it was produced in 1928.
You have a Browning auto-5 standard model shotgun in 16 gauge that was made in the year 1949.
The Browning Auto-5 came in 12-, 16- and 20-gauge varieties.
If this is an Auto 5 model, it was made in 1929
Can't be answered without the model, features and condition.
Your serial number indicates that your Browning auto-5 16 gauge shotgun was made in the year 1948.