Upper Silesia Plebiscite results and borders delimitation.
Sans titreAnnotated with colouring of mines and resources.
Sans titreAnnotated with colouring of mines and resources.
Sans titreUpper Silesia Plebiscite results and borders delimitation.
Sans titreAnnotated with boundary "Line D", "Line B", Lines "I", "II", "III". Upper Silesia Plebiscite results and borders delimitation.
Sans titreAnnotated with boundary "Line D", "Line B", Lines "I", "II", "III". Upper Silesia Plebiscite results and borders delimitation.
Sans titreAnnotated with "Line D". Upper Silesia Plebiscite results and borders delimitation.
Sans titreAnnotated with colouring of mines and resources and an unlabelled boundary lines.
Sans titreAnnotated with colouring of mines and resources.
Sans titreAnnotated with colouring of mines and resources and an unlabelled boundary line.
Sans titre