I just joined up and 'aka' said maybe you guys can help me identify my Dad's Marlin. I'm so sorry but all I have is lousy cell phone pictures that probably won't help you at all but I will post them anyway. This is what is printed on the Marlin in question. The Marlin Firearms Co. New Haven, Conn S.A. Est. 1875 Model 81-DL .22 cal-S-L-LR And here are the lousy pictures. I know it is a very old rifle. I have never seen sights like this Marlin has, but then again, I am quite a newby to the gun world. Also, I have removed the rust from this rifle with 0000 steel wool dipped in some oil. I have also learned to undo 'that big screw' and take the barrel off the stock to further clean the barrel.