Can Anyone ID This WWII German Covers?

I know nothing about them or the postmarks..

anyone?

DISCLAIMER: I'm not fluent in German, so my translations may be a little off.

I think this was used to serve a writ upon someone. Not sure why there appears to be an address on both sides, but perhaps the sender is on the front, and the recipient handwritten on the reverse.

The return address is "Der Landrat des Kreises Steyr", which translates loosely to the District Administrator of Steyr, Austria. The black seal on the front is tough due to the poor impression, but I believe it states "Der Landrat des Kreises Steyr / Briefstempel / Frei durch Ablösung Reich!". That translates roughly to The District Administrator of Steyr / Official Seal / Free or exempt within the Reich. The Garsten address on the front is a suburb of Steyr.

On the back, the purple box is a repeat of the seal from the front, except for "Der Landrat in Amstetten", or the District Administrator of Amstetten, Austria. The red box states "Hierbei ein Vordruck zur Zustellungsurkunde Vereinfachte Zustellung" (this is a form to simplify delivery of a writ). The delivery date blank is empty. (Zugestellt am ........).

In the written address on the back, the recipient is Frau Angela Seisenbucher, in Kogelsbach. Kogelsbach is a town in the Amstetten District of Austria. St. Georgen am Reith is a neighboring town about 1-2 miles away. Due to the small size of both, perhaps Kogelsbach residents received their mail through the St. Georgen post office, which would explain the St. Georgen portion of the address. The rear postmark appears to be "..em..derdonau". Could be a transit mark from Krems an der Donau.

these are two different covers. the backs of both are blank.
thanks PostmasterGS

The Moscow Declaration would be promulgated on 10/30/1943 wherein the US, UK and Russie recognized and promised freedom for Austria.

It would be two more years before Austria was a sovereign nation again.

Two covers makes a lot more sense...

Not really. Austria was occupied by Russia,USA, Great Britain and
France until 1955.
Vienna was divide into four Allied sectors just like Berlin.
Sovereign nations are not occupied.