The Remington model 31 pump action shotgun which was made from 1931-1949 will bring between 150-265 dollars for a plain barrel model with between 60%-90% overall condition.a solid rib model 31 will bring between 190-300 dollars,and a vent rib barrel model will bring between 210-320 dollars,using the criteria set forth on the plain barrel model.If you have a model 31 special(higher grade wood and checkered pistol grip stock) then the value will be between 275-385 dollars.
Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
30p
800
100-1000 depending on specifics
300 or so
Model 58 is an automatic not a bolt action
$500 and up, depending on condition
remington wingmaster 16 gauge
probably around 350.00.
50-1000 USD or more depending on specifics
New in the box - $500-600.
100-300 USD