[Flatbush Avenue and Fulton Street: IRT Brooklyn Line]
Survey photograph of subway construction at Flatbush Avenue and Fulton Street, Brooklyn on the IRT Brooklyn Line. Photograph shows wooden decking and timber A-frames supporting existing Fulton Street elevated train. The camera is on the elevated stairs crossover platform looking southeast onto the intersection of Flatbush Avenue and Fulton Street. Trolley #321S is in the photograph.