Colour photograph shows restored Aveling & Porter traction engine, parked in paddock, 1970, painted green, with distinctive prancing horse logo on front of boiler tube

Colour photograph shows man bagging barley at a threshing machine attached to Aveling & Porter steam engine at a vintage farm machinery demonstration, watched by dozens of people standing behind rope

Colour photograph shows grain being bagged at a vintage farm machinery demonstration with Aveling & Porter steam engine attached by belt to grain processing machine, watched by dozens of people