The changeable story of the Saar-area settles the special
attraction of collecting these stamps. The armistice of the
11th November 1918 ended the first world war. The peace-treaty,
concluded on the 28th June 1919 in Versailles determined, that
15 years later a referendum (plebiscite) has to be carried out.
This led on the 01st March 1935 to the reintegration of the
Saar-area at the German empire. After Hitler and the Nazis
had lost the second world war, the Saarland fall back at
France as a part of the French zone. Later on, the efforts of
the first President of the Federal Republic, Theodor Heuss,
named to the return of the Saarland as a state of the Federal
Republic of Germany. A new collecting sphere was emerged: OPD Saarbrücken.