Keats and Hardy had authored a report in support of the invention, and presented a purported copy. It was noted in parliament that no other copy was to be found. Keats and Hardy were long since dead, and it was noted it was singular they should die, and no copy be found, it being notorious they were both men of business and not likely to have lost their papers. It was concluded no such report existed. The supposed inventions were displayed in the West End Gallery at the great Exhibition of 1851, still claiming the support of Keats and Hardy, but it progressed no further. In 1852 the matter was again brought up in the House of Lords, on 14 May, and a committee was appointed to inquire into it. A week later, on 21 May, the Duke of Wellington intervened, pointing out that the inquiry was one of a scientific nature, and that it had been entrusted to the Ordnance Department. With this the matter appears to have been dropped. The committee never reported. See also Harry Grindell Matthews Notes Attribution 1793 births 1853 deaths English inventors English fraudsters People from Heathfield, East Sussex 19th-century English businesspeople Burials at Brompton Cemetery