Interesting 1923 German Pc Heimatschutze

Hello everybody, here is an interesting postcard I picked up a while back It is German and on the back at top center it reads "Sachsische Heimatschutzen Postkarte". This translates to Saxon Homeland Protection Postcard. It also has an oval Erfurt-Ritschenhausen Bahnpost (railroad) and ZUG 285 inside the cancel. I don't know what ZUG 285 is but have copied some text from Wikipedia that explains the Heimatschutzen. Thank you
David

Heimatschutz is a German word which literally translated means, "homeland protection." In 1916, Austrian Max Dvorak's Katechismus der DenkmalpfIege appeared. In this book Dvorak builds upon the ideas of fellow Austrian Alois Riegl and extends the idea of "homeland protection" beyond simply protection of geographical borders to encapsulate a society's culture.

At the end of the First World War Heimatschutz groups appear in Austria to protect German culture. In 1930 these groups become part of the Austrian government. In 1933 become part of the Vaterländische Front (Front of the Fatherland). When Austria was annexed by Germany in 1938 the Vaterländische Front was disbanded and the Heimatschutz groups were deported to concentration camps by the SA and later the SS

Zug 285 would be the train number. ("Zug" is German for train.)

Cjd, Thank you, that makes perfect sense.
David