Krause 1404 21' Wide Tandem Disk, Pin Hitch, Jack Std, Hydraulic Raise, Hydraulic Fold, 9" Spacing, 19.5" Diameter Front Disc Blades, 18.5" Diameter Rear Disc Blades, Single Wheels On Main Frame & Wings, 11L-15 Tires, 2 Tine Drag Harrow, SN: 6190