O) ECUADOR, POST OFFICE CASA DE CORREOS Y TELEGRAFOS DE GUAYAQUIL OVERPRINTED, MT. CHIMBORAZO, SCENE ON QUITO, FOUNDING OF REPUBLIC, AIRMAIL TO USA
O) ECUADOR, POSTAL STATIONERY 2 centavos, NUMERAL, UNUSED
O) ECUADOR, PUMA, FOUNDING OF THE CITY OF BAEZA, PARROT BIRD, BUTTERFLY, GUACAMAYA BIRD, AIRMAIL TO USA
O) ECUADOR, SCENE IN QUITO, MT CHIMBORAZO, REBUILDING OF THE GPO AT GUAYAQUIL, BANCO CENTRAL DEL ECUADOR, GUAYAQUIL AIRMAIL TO USA
O) ECUADOR, TOBACCO STAMP CASAS DE CORREOS Y TELEGRAFOS CINCO CENTAVOS, POSTAL ADICIONAL CINCO CENTAVOS, PAN AMERICAN UNION, FLAG, FIRST BOLIVARIAN GAMES 1938 BOGOTA, DIVER, PAN AMERICAN UNION, MAP OF THE AMERICAS AND AIRPLANE, CIRCULATED TO USA
O) ECUADOR, TOBACCO STAMP SURCHARGE IN BLACK. SOCIAL AND RURAL WORKERS´ INSURANCE FUND. REVENUE STAMP OVERPRINTED IN BLUE, CASA DE CORREOS Y TELEGRAFOS DE GUAYAQUIL ON COAT OF ARMS, FROM GUAYAQUIL TO USA
O) ECUADOR, TOBACCO STAMP, CASAS DE CORREOS Y TELEGRAFOS CINCO CENTAVOS, SOCIAL AND RURAL WORKERSP´ INSURANCE FUND, MAP OF ECUADOR, PAN AMERICAN UNION, FLAGS OF THE 21 AMERICAN REPUBLICS, FELIX LOPEZ BALBUENA, CIRCUALTED TO USA
O) ECUADOR, PRESIDENT GABRIEL GARCIA MORENO, POST OFFICE, POSTAL OVERPRINTED, CERTIFICATED, TO SPAIN
O) ECUADOR, PICHINCHA BATTLE, JUAN IGNACIO PAREJA, TOMAS WRIGHT, ANTONIO JOSE DE SUCRE, CIRCULATED TO GERMANY
O) GALAPAGOS ISLANDS, ANNIVERSARY OF ECUADOR POSSESSION OF THE GALAPAGOS ISLANDS, ISSUE IN THE GALAPAGOS ISLANDS, COLUMBUS ARCHIPIELAGOM A PROVINCE OF ECUADOR, RAILWAY BYPASS BRIDGE IN AMBATO. AIRMAIL TO USA
O)1937 ECUADOR, OLMEDO 1 sucre, PLANE OVER RIVER GUAYAS, ESTABLISHMENT OF COMMERCIAL AIR SERVICE, SCENE IN QUITO, BANCO CENTRAL DEL ECUADOR, REGISTERED TO USA
O) ECUADOR, BUTTERFLIES, FROM BANCO DEL AZUAY - CUENCA, TO GUAYAQUIL, XF
O) 2015 ECUADOR, BOCON TOAD, FROG, ESMERALDA BOA, SERPENT, SAN RAFAEL WATERFALL, THORN RAY, BAHIA BEACH, GUAYAS RIVER, INCA COLLAREJO COLIBRI, EL VADO CUENCA ANDES, NATURAL RESERVES, FLORA AND FAUNA, LANDSCAPES, STICKERS, ADHESIVES, XF
O) 2018 ECUADOR, FLORA AND FAUNA, GLASS FROG, WHALE SHARK, RHINCODON, GEOSPIZA GROUND FISH BIRD, OREATROCHILUS THROAT STAR, TIPUTINIA DUENDE, CEBUELLA LION MONKEY, VACCINIUM MORTIÑO, LIZARD, SAN FRANCISCO DED QUITO UNIVERSITY LOGO, MNH