1977 Grove RT620S 20 Ton Rough Terrain Crane CB&J#690, 28'-70' Three Section Full Power Boom, 23' Swing Away Lattice Jib, Main Winch with 5/8" Wire Rope, Drum Rotation Indicator, Anti Two Block, Load Moment Indicator 3 sheave Hook Block, Hook Ball, 8'6" Wide Grove 4x4 carrier, Cummins Diesel, 2 Speed Forward & 1 Reverse Automatic Powershift Transmission, Front and Rear Tires: 16:00 X 24 MATCHED, All Wheel Drive & Steering, Sheet metal is straight except for wrinkle in right front fender, glass is good, Routine Service is done. Seller has owned the crane for 25 years and are the second owner of the crane, OSHA Certified, www.CranesBoomandJib.com LLC