Japanese Picture 059 - Bertalan Por
Primrose Hill Tunnel 2 - John Cooke Bourne
Railway Carriages - Vincent Van Gogh
The Steelworks, Cardiff at Night, 1893-97 - Lionel Walden
The Primrose Hill Railway Tunnel - Edwin Thomas Dolby
Across the Continent Westward the Course of Empire takes its way - Currier
The Cut at Paraiso, plate XVI from The Panama Canal by Joseph Pennell, 1912 - Joseph Pennell
The Cut from Culebra, plate XIII from The Panama Canal by Joseph Pennell, 1912 - Joseph Pennell
Super power steam engine, 1935 - Arkadij Aleksandrovic Rylov