$450 to $800 depending on a condition, scope, stock (synth or wood), ADL or BDL. Mountain carbine and etc. Still in production since almost 1960.
See related link.
$200-$250 if better that 90%.
D081337n
$139.95
100-400 USD
serial # 56649
RW is Remington Works, not part of the serial no. 1912.
You will have to call Colt or provide the serial number.
1959
$75 to $250 depending on condition. Express do not get the value of the wingmasters.
$200
Your Remington express magnum shotgun will range in price from 180-350 dollars,depending on the overall condition of the shotgun.These prices reflect between 60%-90% of the original finish,and a good bore.