Thanks SI. That makes sense. I don't know a lot about the heritage of these older cars.
Car 100 is was made by ACF for the BMT. Pretty sure this was not an IND car.
Manufacturer: American Car and Foundry Company (Berwick, Pennsylvania), 1930
Routes: BMT Sea Beach line (N), 1931; IND Eighth Avenue lines (A,C,E), Sixth Avenue lines (B,D,F), and Crosstown line (G), 1932-1970
When the Independent Subway System (IND) opened its Eighth Avenue line in 1932, newly designed rolling stock went into service. The series was called R-1 because the cars were ordered under contract R-1, or Revenue Contract 1, and all subsequent cars ordered by the city were given an “R” designation followed by a series number. Car 100 was the first of the 300 cars in the R-1 series to be delivered to New York City.
The R-1 car combined the best feature of IRT cars (speed) with the best of the BMT (large passenger capacity). The R-1 cars’ most notable innovation was the 4 sets of double doors on each side to allow for faster loading and unloading of passengers. Devices making it impossible for passengers to hold doors open were also new and expected to further cut loading time and reduce passenger injuries. Each 60-foot-long car contained 60 seats in a mixed pattern of cross and lengthwise seating, and room for a total of 280 passengers. Cars built for the IND throughout the 1930s (R-1 through R-9) retained the same basic design and mechanical systems.
The R-1’s riveted shell and utilitarian green paint epitomized the somber, industrial look of the Depression years. Yet the train also inspired a classic swing number, composer Billy Strayhorn’s “Take the A Train.”