South Africa 1932 Pilot Signed First Flight to Victoria West

SA: 1932 Imperial Airways FIRST FLIGHT Cape Town to Victoria West. Registered envelope franked 3 x 4d Airs (centre stamp variety SHORT "I") tied departure cds 26 JAN (all registered mail was postmarked day before flight) and on reverse arrival cds 27 JAN. SIGNED BY PILOT, CAPT RF CASPAREUTHUS. VF, scarce.