You will have to carefully note exactly how the gun is marked, first.
The barrel will be marked "Made in Belgium"
It will be marked if it is Belgian made.
It is a Stevens shotgun, based on a Browning patent. Inexpensive.
Exactly how is the pistol marked? 9mm browning serial number 72C44338
This is a Belgian made A5 which is a Standard weight 16 gauge made in 1956.
It will be marked on the receiver/barrel.
It will be marked on the receiver. It was made in 1980
This Shotgun was made by Stevens their model. 520. Made from 1930's to 1950'S Although the shotgun was Browning patent marked, it was not made by Browning.
It will be marked on the barrel.
It depends on what kind of information you are looking for. Is it a Browning? Is it an over/under or a side x side?. If you want value, try the Blue book of gun values. There are books on the market with information about all Browning models.
The Stevens Model 520 was built on a Browning patent and so marked. Stevens also built the gun for Sears before World War II under the 'Ranger' tradename, so if you have a slide-action shotgun marked 'Ranger' and 'Browning Patent' then that is what you have.
It will be marked on the botton of the receiver.