What is the age and value of mossberg model 151 rifle?

There is a 151M, with a long 2 piece stock, made from 1946-1958, and a 151K, one piece stock with a rounded forearm (called a schnabel) made 1950-51. Do not have a listing for a 151 with no letter. Depending on condition, value is between $100-$225. They are great shooting rifles, and there IS collector interest in those models. Many are missing the rear peep sight, which is expensive to replace. Run a google search for "epix mossberg models" for some good info and photos of the various Mossberg 22s.