Goods traffic was to play an important part of Metropolitan traffic on the extension line out of Baker Street. In 1880, the Met started conveying coal from Finchley Road to Harrow. Goods and coal depots were provided at most of the stations on the extension line as they were built. Goods for London were initially handled at Willesden, with delivery by road or by transfer to the Midland. In 1909, the Met opened Vine Street goods depot near Farringdon with a regular service from West Hampstead. Coal for the steam locomotives, the company's electric power station at Neasden and local gasworks were brought in via Quainton Road. Milk was delivered to the London suburbs and foodstuffs from Vine Street to Uxbridge. Fish to Billingsgate Market via the Met and the District joint station at Monument caused some complaints, leaving the station approaches in an "indescribably filthy condition". The District suggested a separate entrance for the fish, but nothing was done. The traffic reduced significantly when road transport was introduced from to Marylebone, but the problem remained until 1936, being one reason the LPTB gave for abolishing the carrying of parcels on trains. The LPTB was also not interested in running the Metropolitan goods services. Vine Street goods station closed in 1936, and the London and North Eastern Railway (LNER) took over all freight traffic from in 1937.