The gun is a Savage Stevens, a very good, plain, utilitarian gun.
I have used a Savage Folx model B just like it for about 57 years. It has never given me any problems. I have shot a lot of waterfowl and upland gfame birds with it. Now it is used for upland game birds and trap shooting since one has to use steel shot for water fowl. The gun cost $75 when I bought it in 1952