I picked up an unusual Canadian Craftsman 3400 today. Really dirty and the paint is kind of suffering. The saw is probably in the best mechanical condition of any 3400 I have.
The piston has no signs of any chrome loss and there isn't a mark on what I can see of the cylinder. It has a Poulan supplied rim system with almost no wear on the rim, 20" Oregon "Direct Drive" hard nose bar, chain brake and thankfully, a decent Oregon chain. Not sure which model. Full chisel with bumpers, LPX I think.
The saw also has a 4000 type air filter setup on it which is what attracted me to the saw. I think I have too many 3400's now but, I do like the odd balls.
It's also the first saw I've picked up that had mud dauber wasp nests in it. I think it's been sitting for a long time.
The first Poulan I've found in a good long time that wasn't over priced.