Bulgaria. (Prisoner Of War Mail). 1918. Bulgarian postal stationary card 5b green endorsed 'Prisonniers de Guerre' addressed to Bulgaria Prisoner of War, Marseille, France cancelled by Ctahumaka cds routed via Constantin with framed 'Guerre' in red and double ring 'Depot de Prisonniers de Guerre de Nimes/Censure/ 15th Region/ Bulgare' in violet. Attractive item.