Between 1931 and 1937. It will have the sliding safety in front of the trigger instead of the button type located behind the trigger. Some of these guns have the manufacturers code on the left side of the barrel near the chamber. There were about 43000 of these guns made on the Browning patent from 1905 to 1947.
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
1912
1920
1923
1920
1918
1919