Cover with manuscript 'Correo Aereo' at top franked with 1928 5c scarlet 'Artigas' issue and 20c red orange 'Albatross' AIR issue (SG 548 & 570) tied by EXTERIOR MONTEVIDEO cds dated 17-1-1930 with boxed 'CORREO AEREO' tariff box marking in blue alongside. Addressed to SANTOS, BRAZIL with arrival cds dated the next day on reverse. A nice early commercial item.