Today I got a stamp set from France. One stamp was sent on a cover and the other stamp on a postcard.
This is it:
Belgian Exile Government in Saint-Adresse (issued 23-03-2015)
It is a joint issue with Belgium.
After German forces occupied Belgium a Belgian Exile Government was installed in Saint-Adresse in October 1914. It stayed there until November 1918. The leader of the government was Charles de Broqueville. The Belgian King Albert I stayed in the non-occupied part of Belgium and never visited Saint-Adresse.
Thank You very much William!