South Africa 1937 Clouston & Kirby Green Cape - London Flight

SA: 1937 CLOUSTON & KIRBY GREEN RECORD FLIGHT CAPE TOWN - LONDON: Cover franked SA 1d tied by Cape Town cds 16 NOV 37. Also large rubber "Cape Town Municipal Air-Port Wingfield 16 NOV 1937" cds. Small blue "Cape Town-London Record flight" etiquette affixed front and back. GB adhesive on front for delivery in England tied London cds 21 NO. Scarce, Overall light tone-spotting. Priced to move!. (KGVI)