1926 - it will be date code stamped on the barrel, see related links. Thanks I found the date codes.
1914
It was made in 1919.
50-350 usd
It is a Remington Model 12 .22 cal. pump
1912
1919
1915
This rifle was made in 1920.
1914
1907
Around $595.00
Which model, serial? if after 1920 check the date code stamped on the barrel. Remington Society of America, Manufactured Date link has the details.