W.W.II. 1940: Switzerland. Clean airmail-cover sent Sion to Allmedingen. Franked with a 1 Franc airmail stamp, Scott# C12, clear cancellations.
Red „Vols Postaux Speciaux Don National et Croix-Rouge 8. Mai 1940" - cancellation.
Fieldpost-strike Poste de Champagne.
Extremely fine condition.