Illustration of interior of the pneumatic passenger-car from Illustrated description of the Broadway underground railway… Illustration of interior of the pneumatic passenger-car from Illustrated description of the Broadway underground railway… Free Image from public domain license
6
Illustration of the view when looking from within the tunnel into the station from Illustrated description of the Broadway… Illustration of the view when looking from within the tunnel into the station from Illustrated description of the Broadway… Free Image from public domain license
2
Illustration of underground tunneling-machine from Illustrated description of the Broadway underground railway (1872) by New… Illustration of underground tunneling-machine from Illustrated description of the Broadway underground railway (1872) by New… Free Image from public domain license
1
Illustration of the underground tunneling machine - driving the machine ahead from Illustrated description of the Broadway… Illustration of the underground tunneling machine - driving the machine ahead from Illustrated description of the Broadway… Free Image from public domain license
1
Illustration of Broadway underground railway - the experimental section from Illustrated description of the Broadway… Illustration of Broadway underground railway - the experimental section from Illustrated description of the Broadway… Free Image from public domain license
1
Illustration of portal of the Broadway tunnel from Illustrated description of the Broadway underground railway (1872) by New… Illustration of portal of the Broadway tunnel from Illustrated description of the Broadway underground railway (1872) by New… Free Image from public domain license
1
Illustration of New post office & proposed Broadway underground railway from Illustrated description of the Broadway… Illustration of New post office & proposed Broadway underground railway from Illustrated description of the Broadway… Free Image from public domain license
1