Interborough Rapid Transit Company
The Interborough Rapid Transit Company (IRT) was the private operator of New York City's original underground subway line that opened in 1904, as well as earlier elevated railways and additional rapid transit lines in New York City. The IRT was purchased by the city in June 1940, along with the younger BMT and IND systems, to form the modern New York City Subway. The former IRT lines are now the A Division or IRT Division of the Subway.
A New York Transit Museum set of IRT Lo-Voltage motor cars at Mosholu Parkway station
The IRT Powerhouse
An old IRT sign remains at Wall Street station.
Routes of the Interborough Rapid Transit Company, 1924
Brooklyn–Manhattan Transit Corporation
[[File:New York Streetcars (1930).svg|thumb|{{center|The Brooklyn streetcar network]]
A New York Transit Museum set of BMT Triplexes on the BMT Brighton Line
The Coney Island station entrance