Barrel codes, check the Remington Society of America:
http://remingtonsociety.com/rsa/questions/barrelcodes
Lookup of the barrel date code markings on the Remington Society of America, manufactured date link.
1912
Since 1921 Remington has date stamped the barrel you can find the details/table on the Remington Society of America under the Manufactured Date link.
After 1920 Remington stamped a date code on the left side of the barrel in front of the receiver. The diagram and date code table is on the Remington Society of America.
1890-1933 - w/ serial can date (some of them).
1918
1920 (no date code stamp)
The made them from 48 - 62, they are date code stamped on the barrel, the location and chart is on the Remington Society of America.
Made 1927 - date coded on barrel , see manufactured date information on Remington Society of America
RW is Remington Works, not part of the serial no. 1912.
They were only made from 1932-1935, they are date code stamped on the barrel details on the Remington Society of America, Manufactured date link.
I have a Remington 22 long or short Rifle Model 514 pat# 214901322 ABO? What year was this made.