South Africa 1936 Praga Baby Flight Cover

SA: 1936 "PRAGA BABY" flight envelope bearing GB and SA adhesives and at upper left handstamped cachet: "Carried by 36 HP Praga Baby first flight England-Cape Town Ultra Light Planes. In record time, 16 days 20 hrs. Piloted by HL Brook, May 6th-May 23rd 1936." VF example.