by number plates. After 1959, all cars being rebuilt received them. Summary of differences within the AB Standard fleet The following differences existed within cars comprising the fleet of AB Standards: Of the sixth set of cars (4000 to 4049), only 4036 had been rebuilt, removed from service when it was decided not to use trailers in this program. It survived a few years afterward, used as a yard office, and was finally scrapped at the time remaining unrebuilt cars were being retired. See the Description above for more details. See also SIRT ME-1, a similar car built in 1925 by the Standard Steel Car Company for Staten Island Rapid Transit. References External links nycsubway.org Train-related introductions in 1914 New York City Subway rolling stock Brooklyn–Manhattan Transit Corporation American Car and Foundry Company 1914 in rail transport Electric multiple units of the United States