I have a tiller that is built by John Deere. The serial number and model number has been rubbed off. I found a picture of a Model 50 rotary tiller and it looks very similar to my tiller. Is there any one who has a picture or pictures of a Model 50 Tiller? All yellow, the PTO is controlled by a right-angle box that exits to the right (when looking forward from the back), chain driven and 60" wide.