Photographs, a collection of 56 albumen prints depicting the construction of the London Metropolitan and District Railways, 1866-1870. Mounted views of excavation, workings and construction of stations, tunnels and track between Paddington, Kensington and Blackfriars. Depicted are cuttings, retaining walls, roofs, cut-and-cover methods, street site scenes, workmen and officials, steam cranes, windlasses, buckets and other machinery for excavating and lifting; also locomotives and wagons etc., station interiors and architectural facades, and photographic apparatus used by Flather and his assistant]