It probably does not have one. Serial numbers were not required on shotguns manufactured or imported before 1969.
Open the action, SN located on top side of left action wall.
Serial numbers were not required before 1968. If it has one, check under the forearm, on the barrel and on the action.
Rifle or shotgun? What type of action?
Check the receiver.
Made in 1952
With the serial number that you provided,your Winchester model 1912 pump action shotgun was produced in the year 1950.
With the serial number that you provided,your Winchester model 1912 pump action shotgun was produced in the year 1955.
With the serial number that you provided,your Winchester model 1897 pump action shotgun was made in the year 1911.
You will need to include the shotgun model number,or model name.Type of shotgun(single shot,pump action,double barrel,or semi-auto)along with the serial number that you have provided to get the correct age of your Winchester shotgun.
You do not say which model shotgun you own?So I will say that if you have a winchester model 12 pump action shotgun then it was made in 1953.This is the only winchester model shotgun with a serial number that high.
With the serial number that you provided,your Winchester model 12 pump action shotgun was made in 1927.
With the serial number that you provided,your Winchester model 1912 pump action shotgun was made in the year 1928.