Cover with printed 'Primer vuelo avion Pan. American desde Maturin para el Exterior' at top franked with 1930 5c brown, 10c orange yellow, 25c bright violet, 40c bronze green and 1b slate blue AIR issue (SG 395, 396, 398, 399 & 401) tied by large MATURIN ESTADO MONAGAS 'Arms' cancels with '13 FEB 1931' date handstamps. Flown on the MATURIN - PORT OF SPAIN, TRINIDAD first flight. Addressed to USA with PORT-OF-SPAIN TRINIDAD arrival cds on reverse. Uncommon. (Muller 62, only 300 covers were carried)