I picked up one of these are a local yard sale 2-3 years ago from an old timer who used it all the time in his youth. Must of been in is late 80's. I saw it way up on the wall of his barn and said "Hey, how about that old thing". He says "You want that boy?" Boy? With gray hair I'm hardly a boy, but then he says "$20" and I say "Sold!" Nice ages wood (looks like hickory) and a couple of well-used rusty but [censored] sharp blades.
Beautiful piece of history that is more fun than a barrel full of INFI (well maybe not)! Now, I'm not proficient with it, but it is pretty easy (and did I mention FUN) once you get in the groove to clear long grass/weeds and light brush. I'll have to take some pics.