@1932 to at least the late 80's
The only figure that I can provide is Winchester only made 32,500 model 21 shotguns from 1931-1988.I would say that your Model 21 Grand American was probably made between 1960-1987.You might be able to find the correct amount of 16ga model 21 shotguns through the Cody firearms museam,Cody Wyoming.
the savage model 220 shotguns were made from 1937-1945 with 50,000 being made.
WINCHESTER MADE MOST THERE MODEL 1400.
If you are willing to get your winchester model 21,28 gauge shotgun authenticated by a winchester facory letter,then this shotgun could range in price from 25,000-30,000 dollars because it is generally believed that less that 100 model 21 shotguns were made by the winchester custom shop during the production of the winchester model 21.There was a production of 32,500 model 21 shotguns made between the years 1931-1988.Only 1100 were made by the winchester custom shop.You may get a letter on your winchester model 21 shotgun by contacting the the Cody firearms museum located in Cody,Wyoming.I would certainly have this shotgun valued by a qualified winchester collector assoc.member.
The savage model 94 series of shotguns were made from 1926-1945,with a total production of 934,000 made during this time.
Your Winchester model 21 which is a hand made shotgun was made in the year 1932.Winchester made 330 model 21,s that year.The value cannot be determined without a much more detailed description of your shotguns overall condition including the bores.I would have a member of the Winchester collectors assoc.evaluate your shotgun.Winchester model 21,s can bring a very respectable price today.
Your shotgun was made for Montgomery Wards by the Savage arms Company.The Savage Model 620A and your Model 60-sb620 are the same shotgun.These Savage model 620A shotguns were made from 1926-1945.There were 66,500 shotguns made during this time span.
the Winchester 9410
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.
The last Marlin made shotgun was the Model 512 slugmaster,which was made from 1999-2001. After that Marlin made no more shotguns.
Both were High Standard Flite King shotguns. They are similar, but from different time periods. Very nice shotguns, not very pricey.
2013