John Deere Model R - Wikipedia

John Deere History, Tractor History

1952 John Deere R tractor in Savannah, MO, Item DD6410 sold

John Deere Model G - Wikipedia

John Deere R tractor information

John Deere 2850, Tractor & Construction Plant Wiki

John Deere - Wikipedia

John Deere Gator, Tractor & Construction Plant Wiki

File:Traktor John Deere R.JPG - Wikimedia Commons

John Deere - Wikipedia

File:Minneapolis-Moline R tractor VA7.jpg - Wikimedia Commons

John Deere Model R

List of John Deere tractors, Tractor & Construction Plant Wiki