All the 40-60 'Z' Rumelys that were made were produced in 1929. 215 tractors were made that year and of that number, 20 of these tractors remain today. This is a 9.3% survival rate. The tractor was never tested in Nebraska Tractor Tests. It weighed 17,500 lbs and had a 9 inch bore and 11 stroke. The heavy duty, kerosene, two cylinder, engine ran at 470 RPM. Other specs are available ON REQUEST. For more SN info on the 20-40, CLICK HERE.
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