operated as a separate division under the name "Oakland Traction Company", later changed to "East Bay Street Railways. Ltd", and finally to "East Bay Transit Co.", reflecting the increasing use of buses. The numbering of the streetcar lines changed several times over the years. The Key System's streetcars operated out of several carbarns. The Central Carhouse was on the east side of Lake Merritt on Third Avenue. The Western Carhouse was located at 51st and Telegraph Avenue in the Temescal District of Oakland. The Elmhurst Carhouse was in the east Oakland district of Elmhurst, on East 14th (International Blvd.) between 94th and 96th Avenues. The Northern Carhouse was in Richmond where today's AC Transit has a bus yard. In the early years of operation, these were supplemented by a number of smaller carbarns scattered throughout the East Bay area, many of them inherited from the pre-Key companies acquired by "Borax" Smith. The Key streetcars were originally painted dark green and cream white, then orange. They were re-painted in the green and yellow scheme of National City Lines after NCL acquired the Key System. The Key System had ordered 40 trolley coaches from ACF-Brill in 1945 to convert the East Bay trolley lines. The new NCL management canceled the Key's trackless program in 1946 before wire changes were made, and diverted the order (some units of which had already been painted for the Key and delivered to Oakland) to its own Los Angeles Transit Lines, where they ran until 1963. The last Key streetcars ran on November 28, 1948, replaced by buses. Related rail systems The Key System organized its freight business in 1929 as the Key Terminal Railway, Ltd. In 1938, the name was changed to the Oakland Terminal Railroad, Ltd. In 1943 the Oakland Terminal Railroad was jointly purchased by the Western Pacific Railroad and the Atchison, Topeka and Santa Fe Railway and is now known as the Oakland Terminal Railway. The Eastshore and Suburban Railway (E&SR) was a formerly independent unit of the Key System which ran streetcar trains in Richmond, San Pablo, and El Cerrito. Service to Oakland required a transfer to Oakland Traction Company trains at the County Line station and service to San Francisco required an additional transfer. See also the East Bay Electric Lines; another transbay commuter rail system operated by the Southern Pacific in the East Bay until 1941. See also the Sacramento