1991-12-01: Tribute to the Brazilian Military Police

1991-11-29: International Stamp Exhibition BRASILIANA '93

1991-11-28: Thanksgiving day

1991-11-24: Campaign against Leprosy - Padre Damião

1991-11-20: Christmas 1991

1991-11-14: 150 Years Birth Anniversary of Campos Sales

1991-11-14: 150 Years Birth Anniversary Prudente de Moraes

1991-11-11: 100 Years Agriculture and Nutrition Secretariat of São Paulo

1991-10-29: Self Portrait II (1927) by Lasar Segall

1991-10-13: National Stamp Exhibition BRAPEX '91

1991-10-12: UPAEP. 500 Anniv. Discovery of America

1991-10-08: 6th World Telecom Exhibition in Geneve/Switzerland

1991-10-07: 100 Years 1st Brazilian Federal Constitution

1991-10-06: Eucharistic Congress

1991-08-29: Brazilian literature serie

1991-08-22: Birth Centenary of Leonardo Mota

1991-08-11: 50 Years Labor Justice

1991-07-06: Tourism (1991)

1991-07-02: Fire Fighter Tribute

1991-06-06: Reptiles and Dinosaurs

1991-06-05: UNCED Conference for Environment and Development

1991-04-19: Indian Culture

1991-04-08: 100 Years "Jornal do Brasil" Newspaper

1991-04-07: Anti Addiction Campaign

1991-03-20: Panamerican Games, Olympic Games

1991-02-24: Free Flight World Championship

1991-02-20: President Collor Visit at the Antartic Research Station

1991-02-08: Carnival

1991-02: Mark Post and Emblem

1991-01-20: 50 Years Aeronautic Ministry

1991-01-09: Rock Festival in Rio

1991-01-07: World Congress for Sport Education

1991: Flora