SA: 1937 CLOUSTON & KIRBY GREEN RECORD ROUND FLIGHT LONDON - CAPE - LONDON: Cover franked GB 1½d tied by London machine cds 13 NOV 1937 with Cape Town arrival cds 16 NOV 37 struck clearly alongside. Also large rubber "Cape Town Municipal Air-Port Wingfield 16 NOV 1937" cds. Small blue "London-Cape-London Record Round Flight" etiquette affixed front & back. London arrival cds 21 NO 37 ties the further GB adhesive applied on front for delivery in England. Accompanied by photograph of the aviators. VF, scarce, significantly fewer round trip covers were carried. (KGVI). See additional image below.
