I have what I believe is a Stevens/Springfield model 15/120. It is a single shot bolt action that shoots .22 short-long or long rifle. On the barrel it says Springfield Arms Company Chicopee Falls, Mass U.S.A.. No serial numbers on rifle but it has a circled 14 on the barrel. It's been passed through the family so not interested in selling. Just looking for history on it and maybe learn how to date them. Thanks for any help or information.