Decades of heavy towing have worn the hitch pin hole on the old tractor into an oblong shape. This simple steel flaw marks thousands of trailer loads, manure spreaders, and heavy disc harrows dragged across uneven acreage. Each scratch on the drawbar is a testament to the heavy burdens the machine bore without ever bending or yielding. https://www.aniarticles.com/80879-putting-a-50-year-old-tractor-to-the-ultimate-mud-test