First Flight cover franked with 1929 3c purple, 1930 6c red AIR issue & 1927 1c olive green TAX issue (SG 230, 223 & 254) tied by GUATEMALA CITY cds dated JUN 25 1930 flown on the inaugural flight for the GUATEMALA CITY - JALAPA domestic route with boxed 'INAUGURACION DEL CORREO AEREO DE GUATEMALA A JALAPA' cachet in blue with 'JALAPA' inserted in manuscript. GUATEMALA CITY transit cds on reverse. A scarce flight only 162 covers were carried. (Muller #35, Goodman #AM27a)