1/16 John Deere 4520 Tractor, Gun Metal, Columbus Ohio Collector Edition. ROPS, duals, 2 W/D. 1 of 2,500 units made. High quality die cast metal and plastic replica. Highly detailed. Toy is new. Carton is very good. Photos are of the actual John Deere 4520 and carton, not stock photos. Manufactured by ERTL in 2006, stock number 15883S.