Cover franked with 1929 20c on 15p black 'SERVICIO POSTAL AEREO 1928' AIR overprint issue and 1927 1c olive green TAX stamp (SG 242 & 223) tied by boxed CORREO AEREO INTERNACIONAL GUATEMALA cancel dated 22 NOV 1930 with straight line 'CORREO AEREO' handstamp at top left. Addressed to SAN PEDRO SULA, HONDURAS with type 'Via CORREO AEREO TELA' on front and SAN LOREZO VALLE and TELA ATLANTIDA transit cds's and SAN PEDRO SULA arrival cds all on reverse. A nice early use of the airmail service within Central America, possibly even a first flight.