[South tunnel (land), man lock and tender.]
Typical Pressure Tunnel Construction Shaft [Catskill System.]
Shaft No. 4, Steinway Tunnel.
[Holland Tunnel.]
Drilling and Mucking Bench [of] Lower Half of Tunnel [Catskill System.]
[Tunnel construction.]
Flatbush Water-Works.
[North tunnel shield.]
Midtown Tunnel under Hudson River, April 24, 1935
View at Flatbush Water Works, Brooklyn, N. Y.
[Cutting the rails of the Third Avenue El.]
Rondout Pressure Tunnel Showing Partial and Total Concrete Lining [Catskill System.]
Bucket Used to Lower Men and Materials During Sinking of Tunnel Shafts [Catskill System.]
[Shaft 9A.]
Original Exhibits of Rapid Transit Subway Construction Company, Plaintiff [Excavating a tunnel; subway construction.]
[Third Avenue El.]
Shubert Crescent Theatre
Imperial Theatre
Street Scene and Working Men's Quarters in the Ashokan District, Brown's Station, in the Catskills, N.Y. Site of N.Y. City Water Supply.