.
It would be 1949. That's the year that the double "U" or "UU" was used. 1971 was a single "U".
http://www.remingtonsociety.com/rsa/que ... arrelcodes
Besides, according to the Remington site, that model was discontinued in 1970.
http://www.remington.com/products/archi ... l-514.aspx
Den
.