Check the date stamp on the barrel. The table look and details are on the manufactured date link of the Remington Society of America.
1920
Need to check the barrel date code. Remington Society of America, Manufacture date link has all the details.
Remington Works - 1914 (late)
It's date stamped, check the manufacture date page on the Remington Society of America for details.
1912
1920
1923
1920
1918
1919
1912
1920