In the mid 50's to mid 60's a large number of manufacturers were producing chainsaws. Many of them were geared to land owners and farmers. this would have been one of them. Pretty straight forward built and surprisingly easy to work on. Basically handles and bar attached to the motor. One noticable feature on them was the felling spikes. They would roll downward as you moved the saw up while in the cut. Pretty neat furure I have not scene on any other saw. (basically the dawgs were on a pivot point and would only roll downward and had a stop for when they we straight out.