Two Farman Goliaths of Air Union, F-ADDT Languedoc and F-AECU Normandie, dwarf two smaller airliners at Croydon. Those are Blériot-SPAD S.33 F-ADBI, also of Air Union, and Fokker F.III H-NABG of KLM.
This photo was added on 11 September 2021, and has since been viewed 840 times.