Made in 1981 by the craftsmen of Ajin, Korea. Union Pacific GE U50C Undec., O Scale, Parts bag included, has working hinges allowing hatches to open and close to reveal Engine Head detail on either side of long hood, a total of twelve hatches! Two working Fan Blades atop the Radiator, actually rotates whenever the engine moves backwards or forwards at actual speed. Powered by a large can motor with old style ‘Tank Drive’ . This extreme detailing ended in the 1990’s. Nose door opens and closes too. Extremely rare, harder and harder to find and in excellent condition.