Airmail cover from VALPARAISO with printed return address at top left franked with 1931 30c magenta and 1934 50c sepia and 5p orange red 'International' AIR issue (SG 233, 240 & 248) all tied by AMBULANCIA 96 cds's (Santiago - Valparaiso line). Addressed to CALI, COLOMBIA with SANTIAGO and BUENAVENTURA airmail transit cds's and CALI arrival cds on reverse.