RASC officer interned in Switzerland 1940

[Graham Mark]

A colleague in USA has asked me about a cover from an RASC officer interned in Switzerland.
The illustration of the cover is too large for me to upload into the forum.
It was send by 2Lt KR Gough RASC from British Military Internemtn Camp, Biezwil, 21 Nov 40, paid 60c for airmail, to "Esquire" (the magazine) at Chicago.
WWII is outside my usal area - can anyone give an authoratitive answer?
Graham

[Ingo Egerlandt]

Graham,

please ask the member Axel Bertling. He lives in Switzerland. You can send him a email, but he is not active in the forum.

Ingo