London Bridge station
On 14 August 1916, a supplementary Monday - Saturday route 7A was introduced between Wormwood Scrubs and London Bridge station. This route disappeared later in 1916 owing to Wartime shortages, but reappeared on 30 April 1917. During the 1920s, route 7 was extended to Acton and a 7B was introduced as a Waterloo station to London Bridge, Monday to Friday peak hours only service via Holborn.