The details and routes of numbered services are set at around the year 1933. Some will have been extended and some curtailed before and after this date. So complete accuracy for any particular photograph cannot be guaranteed.

26

Kew Bridge Later truncated to Clapham Junction London Bridge (Borough)

Via:
Chiswick High Road Hammersmith Broadway Putney Bridge High Street Wandsworth Lavender hill Wandsworth Road Vauxhall Westminster Bridge Embankment Blackfriars Bridge Southwark Street