Assertion: tractor's engine | /r/HasProperty | exhibited at the great exhibition of 1851
Facets:
value: in london
type: LOCATION
Source sentences:
text: However a ploughing engine, devised by Peter, Lord Willoughby de Eresby and his bailiff George Gordon Scott, and constructed at Swindon Works, was exhibited at the Great Exhibition of 1851 in London, some years before Fowler's system appeared.