Underground Electric Railways Company of London Its early success resulted in a rush of proposals to Parliament for other deep-level routes under the capital, but by 1901 only two more lines had opened: the Waterloo & City Railway (W&CR) in 1898 and the Central London Railway (CLR) in 1900. Construction had started on one other line and then stopped following a financial crisis. The rest of the companies were struggling to raise funding. The District Railway (DR) was a sub-surface underground railway which had opened in 1868. Its steam-hauled services operated around the "Inner Circle" and on branches to Hounslow, Wimbledon, Richmond, Ealing, Whitechapel and New
London Underground Standard Stock and were later reclassified to become Classes 485 and 486. Apart from those cut up following accidents at Ryde depot, and other early withdrawals, most of these units were withdrawn between 1988 and 1991, when they were replaced by London Underground 1938 Stock. In October 1990, five cars were returned to London Transport, to form a Heritage Train. They worked under their own power between Fratton and Wimbledon, and were displayed at an open day at Morden Depot, celebrating 100 years of the Northern line. Standard Stock is used to describe six experimental cars built by five manufacturers in 1923,