1981-12-18: Philately

1981-12-17: Ex-libris

1981-12-15: Police of São Paulo's State

1981-11-30: Centenary of the Engineering Federal School - Itajubá

1981-11-26: Thanksgiving day

1981-11-26: Ministry of Labor

1981-11-19: State Flags

1981-11-10: Christmas 1981

1981-10-29: Book day

1981-10-23: 75 Years of the First Plane Flight - Santos Dumond

1981-10-16: World Food Day

1981-10-12: 50th years of Christ Statue in Rio de Janeiro

1981-10-10: Homage to N. S. Nazaré

1981-09-21: Flowers of Central Plateau

1981-09-17: International Year of Disabled People

1981-08-22: Popular Dancing

1981-08-11: Military Institute of Engineering

1981-08-01: 100 years of Issue D Pedro II - Small Head

1981-07-26: World Congress of Esperanto

1981-07-10: 50th Anniversary Railway Madeira-Mamoré

1981-06-10: 50 Years of National Airmail

1981-06-05: Environment protection

1981-05-31: Rotary International

1981-05-22: Hummingbirds

1981-05-18: Artifacts from Brazilian Museums

1981-05-13: Lima Barreto (1881-1922)

1981-04-30: Natural Economy Resources

1981-04-10: Hunter and Ounce

1981-04-10: Century Dead Felix Emile Taunay

1981-03-11: 50 Anniv. Post and Telegraph Office

1981-01-22: 4th Pan-American Jamboree

1981-01-02: Agricultural development