Unidentified subway tracks.
Shaft No. 4, Steinway Tunnel.
Man inside the southern end of a river tunnel.
Railroad tunnels and bridge, south of Central Avenue.
Right-of-way on portal.
9th Street in Brooklyn.
Unidentified tunnel.
Unidentified street and railroad tracks.
Northern section of land tunnel.
Central Avenue bridge.
Opposite Trinity Cemetery.
Sea Beach Line at 5th Avenue.
Sea Beach Line cut supporting building foundation, Fort Hamilton Parkway.
Sea Beach Line and Long Island Railroad at 5th Avenue, looking west to 4th Avenue.
60th Street.
Southbound express tunnel.
Church Street.
Liberty Street.