Wimbledon, London Spencers attempted to get parliamentary permission to enclose the common as a new park with a house and gardens and to sell part for building. Following an enquiry, permission was refused and a board of conservators was established in 1871 to take ownership of the common and preserve it in its natural condition. Transport links improved further with railway lines to Croydon (Wimbledon and Croydon Railway, opened in 1855) and Tooting (Tooting, Merton and Wimbledon Railway, opened in 1868). The District Railway (now the London Underground District line) extended its service over new tracks from Putney in 1889. In the
London Underground engineering stock London Underground engineering stock Over the years, London Underground has acquired various types of engineering stock to help with the construction of new lines and maintenance of existing lines. Some of these wagons were inherited from its predecessors, many were built new and some were acquired second-hand from the main-line railways. Several types of specialist wagons have been used, which are described below. London Underground uses a numbering system comprising the wagon number prefixed with a letter which designates the wagon's type. These are summarised below. London Underground has used various designs of brake van. They were used for the