Lot 2922
Third Ad Astra Africa Flight (SLH no. 30.12cL), Furstensteig 5 rappen green, Royal Couple 2 francs green and red brown, Airplane 25 rappen orange brown and 1 franc red carmine on cover from Triesenberg 29-11-1930 via Zürich to Fez (Maroc), very fresh and very fine