O) 1867 FRANCE, P.P BOX CANCELLATION, BORDEAUX, PAQUEBOT ANGLAIS,...
O) 1982 ECUADOR, QUITEX 1982, NATIONAL STAMP EXHIBITION - QUITO SCT 1023 MINIATURE SHHET, MNH
O) 1986 ECUADOR, ORDINANCE OF THE REGULATION AND PTRGANIZATION OF THE INTERNATIONAL BIENNIAL OF PAINTING,, XF
O) 1988 ECUADOR, IMPERFORATED, DR PEDRO MONCAYO Y ESPARZA, SCT 1161, MNH
O) 1989 ECUADOR, IMPERFORATED, 1988 SUMMER OLYMPICS SEOUL, EMBLEMS, CHARACTER TRADEMARK DEMOSTRATING SPORTS, MNH
O) 1990 ECUADOR, IMPERFORATED, OCEPA. ARTISAN´S ORGANIZATION, CRAFTSMANSHIP, WOOD CARVING, ART, PARROT, MNH