It's a Horse. Early production tiller models, manufactured prior to 1990, do not have a model number. These models are recognized by their model name, such as "Horse", and their serial number. The serial number would be stamped in the side of the transmission housing near the wheel shaft.
A forum community dedicated to all tractor owners and enthusiasts. Come join the discussion about farming, lawn maintenance, restoration, modifications, classifieds, troubleshooting, maintenance, and more!