1973.The serial number is n177xxx.
Barrel length, type of finish, any original packaging and condition will determine value. Without knowing any of those it could be anywhere from $400 to $1K.
SN's ran from C622700 in 1963 to C810532 in 1965.serial # C720XXX
It's a Victory model made during WWII for the military.Serial number is v 368183
SN's ran from V1 in 1942 to V769000 in 1944.
Jim