Close-up of Underground guard at West Kensington station (District Line), using the metallic handle of his flag to make contact with overhead wires, thus ringing an electric bell to confirm to the driver that he may restart the train.
Photographed by Topical Press, 9 Mar 1928
Location: West Kensington Underground station, North End Road, Hammersmith and Fulham, W14
Image no: U4850
Inventory no: 1998/80086