Cover franked with pair 1925 5c grey brown (SG 415a) tied by GUAYAQUIL cds dated JAN 2 1930. Flown on the Guayaquil - Quito first flight by the Military with illustrated 'Map' first flight cachet on front and signed at right (possibly by the pilot). Addressed to the French Legation in Quito with arrival cds on reverse. A scarce flight only 270 covers were flown. (Muller #31)