I've got a couple of left handed Oliver walking plows. Trying to think here without going out to look at the model. The one is full sized,I want to say a 40L. The other one is a small single mule plow that I bought in Tennessee. Number 19 or 21 maybe.
Then I've got two reversable plows,this Chatanooga steel beam and a wooden beam Syracuse. Just trip the latch on the back and it'll plow left or right. I've got the point for an Oliver two way,but haven't found the plow to go with it yet.