Cover with manuscript 'Air Mail' at top franked with 1922 2c carmine red, 1930 15c on 25c blackish green AIRMAIL 'Surcharge' issue and 1929 1c blackish green TAX issue with 'R. de C.' overprint in red (SG 467, 634 & 628) tied by MATAGALPA cds's dated OCT 17 1930. Addressed to USA with boxed CORREO AEREO MANAGUA illustrated 'Airplane' transit mark on front.