I have an older Stevens rifle(.22 lr-l-s) It is a bolt gun with detachable magazine. The top of the barrel is marked Stevens MOD.56, bottom of barrel is marked Stevens Buckhorn Rifle. It was probably from the 1930's era as it belonged to my 86 year old father in law as a youngster. It also has a Diopter type reciever sight on the side of the reciever and a folding rear sight. I can't find any info. or value. Any help would be appreciated, Walt