It would have to be on the receiver to comply with Federal Laws. But keep in mind that firearms did not require to have serial numbers on them until the "Gun Control Act of 1968". So if your firearm was manufactured prior to that year there was no requirement for it to have a serial number. Most firearms made prior to '68 do not have serial numbers. I know that there were model 58's around at least as early as the mid 1950's so there is a good chance your shotgun does not have a serial number.
Check the receiver and barrel.
with a serial number of E261611
Serial numbers were not required before 1968. If it has one, check under the forearm, on the barrel and on the action.
Where is serial number on stevens 311c 410?
Depends on model and when it was made. I have a Stevens 84-C that has no SN on it.
All my records indicate that stevens did not make a model 337 shotgun.If your stevens shotgun is marked U337 under the receiver,this would be a serial number,not a model number.
40-110 yrs
If it has both the Stevens and Savage names it was made sometime after the mid 1940's. If it has no serial number, it was made before 1969.
4
July 10, 1902 Patent application was filed on a pump action shotgun that would become the Stevens Model 520.
SN not required before 1968
The letter on the serial number usually indicates the date it was made. The letter "S" on your serial number indicates that it was made on 1965.