\[33rd Street and 4th Avenue, IRT East Side Line, Manhattan, NY] 33rd Street and 4th Avenue (now Park Avenue South), Manhattan, NY. Survey photograph of excavation of the street during Contract 1, Section 3 construction of the IRT East Side line. View of men working at different levels inside the excavated pit. Also showing stone, rubble and a wooden sidewalk with a stairway leading to an elevated platform above the street.