A friend of mine has a bunch of two cylinders and I try to help or save something different each year . Well I think it's gonna be these 720 diesels maybe . If you look close you can make the other one out in the top left of the picture (if you can in large the photo) . It's behind a gate but you can see the seat and top of the wheel .The one in the pic hasn't run in more than close to 20 years other in 10 . Looks like fun , there still free one needs a rim that's here somewhere . All tires seem to be holding air they have been in this shed the hole time so that's a plus . With any luck I'll have more info later .