I beilieve 1952-1953.
The Savage 820 model is an older gun that was made long before the current accessories. No one ever made any after-market accessories for this model, it is not noted the year of manufacture.
this firearm was built around the mid-to late-60's
The Stevens/Savage model 987 was made from 1972-1989.
Your Stevens model 30 was made from 1933-1934.
your Stevens model 15-A was made from 1936-1945 with 224,000 being made.
The stevens model 77 slide action shotgun was made from 1955-1971.
The savage/stevens model 73 was made during the years 1964-1969.
j stevens arms company modle 94b what year made
The Stevens model 15 was made from 1936-1971.
The stevens model 311 was made from 1926-1945.
The stevens model 59A was made by savage arms from 1937-1967.I am afraid that this is the best I can do with the info available.
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.