"(French Niger) Air France/Air Afrique, 16x rated and highly franked SCOA commercial corner cover flown into Zinder, 14/2 arrival cds, from Paris, correctly rated 1F60 ordinary (French Colony therefore internal rate) and 2X 20f (1938 St Malo airmail surcharge (16 x 2F50 per 5g),uncommon violet straight line ""Ligne Avion Congo"" hs, pale grey/black airmail etiquette. An exhibition quality cover written up on display page with nice route, airline carrier and postage rate documentation."
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