Cover franked with 1931 15c ultramarine AIR issue, 1933 4c orange yellow AIR issue and 1927 1c olive green TAX issue (SG 262, 273 & 223) all tied by RECEPTORIA POSTAL NOCTURNA QUEZALTENANGO cds's with boxed 'SERVICIO POSTAL AEREO QUEZALTENANGO GRAMOS 10' cachet alongside with weight inserted in manuscript. Addressed to USA with fine blue & red 'CNA Correo Aereo para mayor rapidez conteste por correo aereo Cia Nac. de Aviacion' airmail label also on front.