1787940 Blackwall Tunnel: crowd gathered at the opening ceremony, 1897 (b/w photo) by English Photographer, (19th century); London Metropolitan Archives, City of London; (add.info.: Blackwall Tunnel: a smartly dressed crowd gathered at the opening ceremony, seated in a viewing platform, a policeman stands to the left Poplar, Metropolitan Borough of; Tower Hamlets, London Borough of); 穢 London Metropolitan Archives ; English, out of copyright.