Engineering – New Motorcycle Engine - from our story 'Heroes, Dames And Monowheel Magic: Motorcycles In The 1920s'

English engineer, Sir Charles Parsons (left) surveys his new invention, a new motorcycle engine, as members of the British Association of Scientists take a keen interest. Thomas Edgar Lewis is seen holding the machine Ref #: PA.11397157 Date: 26/08/1920

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