A kickass British modernist fascinated by the technological advances brought about in the interwar years, specifically the London Underground network.
Whence and Whither (1930)
The Tube Station (1932)
The Escalator (1929)
Power's interest in speed and machinery didn't stop at the Tube - my favourite of his linocuts is one of the non-transport ones.
The Merry-Go-Round (1931)