This Case 660 was built in 1966 and still sees regular grain harvests every year. The combine is used exclusively for harvesting oats. It is powered by a Case 66 HP 4 cylinder gasoline engine. The drive train consists of a 3 forward 1 reverse gearbox coupled with a variable belt drive that is hydraulically controlled. A 10' cut grain platform handles the cutting duties. Some optional equipment such as power steering, hydraulic reel to cutter bar height lift and variable speed cylinder drive with cylinder speed tachometer are present as well. There are no electronics or automatic header lift control on this machine. Header height is controlled manually by a direct hydraulic lever.  Header height is adjusted constantly to harvest effectively on uneven fields. There is no cab on this particular 660 although cabs were available. An aftermarket seed separator has been mounted above the grain tank and all harvested grain passes through this, grain goes to the main tank while smaller seeds such as weeds are deposited into a collection bag on the side of the machine.