You will have to contact Mossberg to find out.
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.
151,000
If you want to see SOME of the MANY 22 semiautomatic rifles that were made by Mossberg, go to google, at the top of the screen select "image", and then type mossberg 152. If you are looking for an image of a particular Mossberg 22, you need to type in THAT model number. There are more than a dozen different models.
Originally, none of them. They were produced in blue. Rifles that came back through for an arsenal rebuild in later years were Parkerized if the bluing was in poor condition.
Sako rifles made in Finland and founded in 1927. Now sako rifles are very popular in today's time. Many well known companies are making and supplying sako rifles. Customer can visit this shops and get these rifles easily.
Your rifle was made for Montgomery Ward stores by Mossberg, and is a Mossberg 346K. You can check with a gunsmith, or check the website for gunpartscorp (look under Mossberg). Havlinsales also stocks many Mossberg parts.
Many are made in North haven CT. Some are contracted out to South America.
No way to answer with just the information given. Who made it?
@9,500
Depends on condition and completeness- many are missing some of the sights. For a specimen in very good condition, complete, around $250. Excellent target rifles.
Millions have been made.