Girl Riding Experimental Dynasphere Unicycle

This striking sepia‑toned image captures a young woman at the controls of an experimental Dynasphere—a large, single‑wheel vehicle designed to enclose rider and engine within its rotating rim. Set against the rolling lawns of Norfolk, the photograph showcases early 20th‑century ingenuity in personal transport, where inventors sought novel solutions to mobility beyond the conventional bicycle or motorcar.

Historical Context Invented around 1930 by British engineer J. E. Poulson, the Dynasphere represents the spirit of interwar technological enthusiasm. With its petrol engine mounted inside the wheel’s hub, the device promised compactness and a smooth ride—though stability and steering proved challenging in practice. Such monowheel contraptions were often demonstrated at county fairs and seaside resorts like Great Yarmouth to astonish the public and attract investment.

Share Your Own Vintage Finds! Have sepia‑toned postcards, family snapshots or photographs of early motoring experiments? Upload your treasures to OldPik.com and help preserve Britain’s inventive heritage—one image at a time.

SEO Tags vintage photo, 1931 Dynasphere unicycle, experimental vehicle, J.E. Poulson invention, Great Yarmouth history, interwar transport, antique UK postcard, monowheel demonstration, Norfolk nostalgia, OldPik uploads