Registered cover franked with pair 1940 10p magenta (SG 540) and lovely multicoloured 'Unidos Nacia La Victoria!' FLAG label printed by 'Asociacion Internacional de Prensa' all tied by ASUNCION cds's with boxed 'SERVICIO DIPLOMATICO DE BRASIL' and 'CORRESPONDENCIA OFFICIAL FRANQUIA POSTAL PANAMERICANA' cachets in black. Addressed to ARGENTINA with registration label on reverse and arrival mark on front.