No. Model Years Built 454-458 GP7 1951 464/474 GP7 1952 479-482 GP7 1953 1000 E8A 1949-53 1001/1001A-1002/1002A E7AA 1946-49 1003-1015 E8A 1949-53 1020/1020A-1021/1021A PA-1 1949