1984 John Deere 7721 Pull-Type Combine, Manual Fore/Aft Reel Adjustment, Large Wire Concaves, Manual Concave Adjustment, Manual Sieve And Chaffer Adjustment, Rotary Chopper, Straw Spreader, 190 Bushel Bin Extensions, 18’ Unloading Auger Length, 23.1-26 Rear Tires, SN: H07721X600059