By comparing the serial number to published lists. sales@countrygunsmith.net
Your Winchester model 42 was made by Winchester in 1935.
Your winchester model 42 shotgun was made by winchester in 1947.
Your winchester model 42 was made by winchester in 1934.that makes your winchester 77years old.
Your winchester model 42 was made by winchester in 1959.
1937
With the serial number that you have provided,your Winchester model 42 was made in the year 1939.
With the serial number that you have supplied,your Winchester model 42 shotgun was made in the year 1940.
Your serial number indicates that your Winchester model 42 was made in the first year of production,which was the year 1933.Winchester made 9398 model 42,s that first year of production.
1948
1950
Go to proofhouse.com
Made in 1953.