This is the very first 320. A 320S built in 1956 and a 1957 model year tractor. Owner - Bill Voges - Casa Grande, AZ. Purchased new by Bill's father in Minnesota for Bill to use on the farm when he was too small to run the bigger tractors. Tractor has always been in the family. Pictures taken at the Glendale, AZ show February 10, 2007.