Gloster A.S.31 Aerial Survey Biplane  G-AADO                     (c/n  1)

                                    

                                        This image is the best I can do with the very poor print I have of this aircraft.  Two examples of this
                                        H.P. Folland designed survey machine were built in 1929.  G-AADO passed to the South African Air
                                        Force in 1933 whereupon it was given the serial number 250.  It was operated by the SAAF until well
                                        into 1942.   Power was two 500 hp Bristol  Jupiter XIFs.