This is an unstyled model "D" built in 1938. The serial number is #138652. The unstyled "D" was built from 1924 until 1939. The engine has 2 cylinders with a displacement of 465 cubic inches. It had three forward speeds and one reverse, with a top speed of 4 mph. This tractor came to us from Clearwater. It appears the rear rubber is on cut-off rims.