Brazil. (German Prisoner Of War Mail/Under Cover Mail). 1919. Brazil postal stationery envelope 200r blue cancelled by Rio de Janeiro date stamp written from German Prisoner of War in 'Camp No 1' with framed '(Red Cross) Correspondance/Des Prisoners De Guerre Au Brasil' in violet with circular 'Estado Maior Da Armada/Servico da Censura' in violet on reverse, addressed to the 'Deutsche Hilpsverien, Stockholm' with 'Opened by Censor/P.W. 209' label and Stockholm arrival. Rare item from German Seaman captured in Brazilian waters and interned, the address in Stockholm is under-cover, the mail was then forwarded to Germany.