Hi lorrym,
The aircraft involved was:
G-AABF Blackburn L.1B Bluebird III
Manufacturer's serial number 1450/5 - it was the fifth of this type to be built.
The aircraft had first been registered in September 1928 to Suffolk & Eastern Counties Aero Club, later sold to H R Law at Croydon, before being sold to Mrs G Gallien & Miss S O'Brien at Hanworth.
I can't find photos of G-AABF, but there are photos of this type of aircraft is you do a Google search on "Blackburn Bluebird".
Regards,
David