I just took in this Daisy 25 in need of some TLC, I noticed th typical rear stock warpage, either from hot sun or heat sorce, or chemical reaction such as bug spray etc. I will have to search the data base for year of Mfg. Found Mfg date November 1974 LOL that was about my guess talking to the customer over the phone, IIR I was thinking 72 or 73, I was really into BB guns back then