Serbia. (French-Hungarian Detachment in Szabadka). 1919. Stamp-less picture post card of 'Szabadka (Subotica)' addressed to France, endorsed 'Souvenir de Hongrie' addressed to France cancelled by 'Tresor et Postes/ 520-D' date stamp '9th May 15' with circular 'Armeee Francaise de Hongrie/ Commissaire de Gare/ Szabadka' in violet on face.
Szabadka (Subotica) was part of the Austro-Hungarian Empire until the end of WW1 when it became part 'The Kingdom of Serbs, Croats and Slovens'. A rare item from the French Forces Boundary Commission.