This saw from what I understand was just before the 3200 and to be honest Carl, haven't looked at it that close yet. I will take some more pictures when I take her clothes off.
Fine old magnesium saw you have there, my fingers still tingle from running them back when. Solid mount handles transmitted all the vibration right to the hands but we cut full days with them.
I bought a new 1450 in late 1967, that saw cut a pile of wood over the next 10 years, it still runs strong and even looks decent with most of its paint intact. It`s only a 65 cc saw but acts like a 70cc one, they had great torque.