1930 (25 Jun) USSR Syas - Moscow - Berlin - Salzburg, Airmail cover, flight Moscow - Berlin, Berlin - Salzburg (Muller 16 and 341 CV $850)

From ex Dr. Peter Moeller collection that received the Large Gold Medal at the Hannover 2011 Exhibition.

Sjass - Moscow - Berlin -
(Feld am See/Carinthia)

Postal starpel:
Sjass 7.1.1930
Moscow 11.7.1930
Berlin 11.7.1930
Berlin MLb
Salzburg 12.7.1930

Postage: (from 1.7.1930)
Lp-cover 45 Kop
1 Kop underfranked

From the Sjass district in the Leningrad governorate not from Leningrad by airmail, but by rail to Moscow and then by DERULUFT to Berlin

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Sjass - Moskau - Berlin -
(Feld am See/Kärnten)

Poststernpel:
Sjass 7.1.1930
Moskau 11.7.1930
Berlin 11.7.1930
Berlin MLb
Salzburg 12.7.1930

Porto: (ab 1.7.1930)
Lp-Brief 45 Kop
1 Kop unterfrankiert

Aus dem Bezirk Sjass im Gouvernement Leningrad nicht ab Leningrad mit Luftpost, sondern per Bahn nach Moskau und dann mit DERULUFT nach Berlin befördert