I saw this machine at the Selwood Rally, Nr Trowbridge, Wilts last weekend. It turns out to be a Cyclo made by Cylinder Developments, this one is a Mk III P as it has a driven wheel, the Mk III H has no drive to the wheels. Engine is a Villiers Mk 2G, 70cc two stroke. Cutter bar is the same as a Merry Tiller, I've posted a picture of my Merry Tiller with it's cutter bar for comparison....