Not if they were manufactured prior to 1969.
It may not have one. Serial numbers were not required by law on rifles and shotguns until 1968.
These shotguns were made from 1926-1945.Stevens did not keep records as to the year of production by serial numbers.
Your stevens model 9478 shotgun was made during the years 1978-1985.while serial numbers were on the shotguns I do not believe that serial number records were kept as to the year of production.
Most likely isn't one these shotguns were over 50 years old and were made before there was a requirement for background checks/ serial numbers.
These shotguns were made by savage/stevens between the years 1986-1989.There was no accurate records kept of the serial numbers as to year of production.
You really should give us a hint- a model 287 WHAT. If by pure luck you are referring to a Stevens 287 22 rifle, it probably does not have one. Serial numbers were not required by law on rifles and shotguns until 1968.
Check the barrel and receiver.
The Stevens model 9478 was made from 1978-1985.for a exact year of production,you will need to contact Savage Arms Company who made the Stevens line of shotguns.
That is not a model number, but is likely the serial number. Unless you have a Model 620 US marked Trench Gun, Stevens pump shotguns have little collectors value.
You will have to find a listing of all the serial numbers from the maker for the shotguns they made and go through them.
The original Savage?Stevens model 311 shotguns were made from 1926-1945.The more recent made Stevens model 311 shotguns were discontinued in the year 1989.