I believe the manufacture run on these were '70-'81. My dad bought this one for about 100.00 back in '70 for whitetails. It was the rifle I carried my first opener at 14. Never shot a thing with it, always intimidated me probably due to my distaste for recoil and it just didnt fit me (I was small). Fast forward 30yrs, my dad passes away and I got rifle in my case, finally got big enough to love the challenge of recoil (fave is the guide gun 45-70).....and did put the gun back in the field this year so a friend could have an extra.
The 170 is slowly fading into obscurity but still can be found here and there burning in the hearts of those that love them. I know a fella that hunts with one as a backup swamp gun....he has the "c" carbine model. He bought his new circa '74 for 75clams!
Perferator