Spain Irun 1944 Air Mail Label?

First time I see this airmail label, so I wonder if it is something else like an airmail Censorship.

It is called an Airmail Etiquette, it is not a censorship. Airmail etiquettes were first used in 1918 in France and spread quickly as airmail became more common. They have been issued by postal administrations, airlines, and ordinary private companies that used airmail. Their purpose was to draw the attention of the postal clerks that a card or letter or package was being sent by airmail and to avoid it accidentally being routed by land or sea. Some people collect them - both on cover and in mint unused condition and that can be a fun area to collect since there are many different ones. There are something like 3 or 4 catalogs that list them. The two I am most familiar with are: Müller, Frank. Catalogue des etiquettes aéropostales: émises par les administrations postales, les compagnies de navigation aérienne, etc. Paris: La Maison de la poste aérienne, 1947 288p; and, Jones, Frank. ETIQUETTES: PAR AVION - BY AIRMAIL. Pub. by author, London, UK, 1992, 56 pp. A study of the air mail etiquette--its earliest use, different types, official & unofficial, many different types shown, including some in color. Less collected but collectible are rubber stamped "via airmail" type markings and pre-printed cards and envelopes with the same type of wording. I think that etiquettes are the most fun to collect since they are very stamp-like by being paper labels glued to envelopes and you can collect them off cover or on cover or both.

Thanks Kimo,

It's just that I had plenty of spanish etiquettes, but none as big as this one, that is why I wondered if it was something else.

Anything is possible. One other possibility is that it may have been something that the post office applied to the top piece of mail in a pile of mail that was being sent by air - something along the lines of an OAT rubberstamp cachet? OAT markings were in greatest use during the war years. This particular etiquette seems to have been applied on top of and after the stamps and cancellations so it being a type of OAT indicator is possible.

Why the German markings? Was the air route to Switzerland from Spain operated by Germany?

THe German control stamps indicate Berlin.So can be assumed it transited
from there to Switzerland.The 4.7.44 could be the arrival date?
Curious time;mid 1944..

Thank you. "Curious" is an understatement!

Interesting intro on Spain & German feldpost....
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