All my reference material says that the model 97 trench shotguns were made with a blued receiver.this includes the riot configuration also.It would make no sense to nickel plate these shotguns in military usage because the last thing that you would want is to draw attention to your self/give away your position with the bright reflective finish of nickel plate.
the Winchester 9410
model #24
The winchester model 1887 shotguns came with black walnut,for wood.
WINCHESTER MADE MOST THERE MODEL 1400.
One of the models that Winchester made in 1982 was the model 94 shotgun. The model 70 was also made in 1982.
Winchester Model 12 slide action shotguns were marked as the "Model 1912" from 1912-1919. Godbear Tennessee
The winchester model 42 was a .410 pump very like the old model 12 pump
These inexpensive Winchester shotguns are selling for between 55-140 dollars.
The best that I can do is say that all Winchester model ranger shotguns(of which yours is one) were made from 1983 onward.Most of these shotguns serial numbers were not kept in the records of Winchester as to the serial number and year of manufacture.
Winchester made these pump action shotguns in there New Haven Conn.plant from 1964-1981.
No.As a matter of fact I have no records of Winchester ever making a model 6!Could you be thinking of the Winchester model of 1906 .22cal.rifle?
The Winchester model 12 shotguns with the Y prefix were made by Winchester from 1972-1975.These vent rib barrel shotguns were hand checkered,with select walnut stocks and jeweled bolt.They were fine made shotguns that were only available for 3 years,and sold out quickly.