Post a serial or call Remington.
serial number 190394
Go to Remington.com
Serial numbers by year for the 870 Remington Model.
Remington Arms introduced this model in 1939 and discontinued production in 1963 with an approximate number of 381,267, units built. The codes AG would place the manufactured date to March of 1960.
In the year 1890,as a model No.4 rolling block rifle.
if after 1920 - it'll be date code stamped, look at related links for information on the Remington Society of America. Before that need model/serial or Call Remington.
The model 31 was made from 31-49 so the barrel is date codes stamped, I add related links which has a page on the Remington Society of America with a diagram and the table.
Remington has never made a firearm with the model designation of 812
The last year of production for the Remington model nylon model 66 was 1990.These rifles were made from 1959-1990 with a total production of 1,050,336.
Depends on the model.