South Africa 1930 Caspareuthus Record Flight Signed Cover

SA: 1930 CASPAREUTHUS RECORD FLIGHT: Neat small format envelope carried on Caspareuthus's record flight from London to Cape Town. Franked GB KGV 1½d adhesive tied by London cds and machine cancel OC 4. At left "Airpost" cachet and oval "Special" handstamp. SIGNED BY PILOT. Cape Town arrival cds 13 OCT on reverse. Only 22 items carried, not all signed. Rare & exceptional aerophilatelic piece. Superb.