Registered cover franked with 1927 5p chocolate and 1929 AIR 'Surcharge' issue set of three (SG 312 & 345/347) tied by SCIO AEREO POSTAL PARAGUAY cds's dated 6 JUN 1929 with printed registration label with 'Asuncion' added in manuscript on reverse. Addressed to UK with boxed 'CORREO AEREO REP. DEL PARAGUAY' cachet on reverse with arrival cds.