Bilingual poster "Warnung!" from Protectorate of Bohemia and Moravia stating that this land was incorporated to the German Reich in October 1939 and therefore all the industries were from then on under German control and people living there are citizens of the Third Reich. States guidelines to such as avoiding partisan or sabotage actions against German forces or authorities or they will be punished severely with very violent reprisals, etc. It's written in German and Czech and it was "signed" by Konstantin von Neurath, Reichsprotektor of Bohemia and Moravia. Posters like this were hung in public places and on buildings. Measures 25 inches x 37 inches.