Hello,
Currently on ebay are a number of photos of early Farman types operated by the RFC as follows:
Farman HF.20 Serial 286
https://www.ebay.fr/itm/RPPC-AVIATIO...wAAOSwOINezMyZ
Farman MF.7 Serial 207
https://www.ebay.it/itm/Early-1900s-...4AAOSwuaJey8fs
Farman MF.7 Serial 217
https://www.ebay.co.uk/itm/1900s-Joh...wAAOSwnEFexqCz
Farman MF.7 Captioned as 402, but 403?
https://www.ebay.fr/itm/RPPC-AVIATIO...oAAOSwSRVey31h
Regards,
Clint