1934-50 first flight covers (3), 1934 March 5th Acceptance for RANA FF Salisbury - Blantyre flown Imperial Airways Joburg - Salisbury with cachets, 1934 March 5th Acceptance for RANA first flight Salisbury - Blantyre posted on Royal Train, Maseru & flown Imperial Airways Kimberley - Salisbury with special pmk & cachets, scarce, 1950 June 2nd Drakensberg Air Service FF Mokhotlong - Lady Smith special cover, useful trio of rarely offered covers. (Image)