| 10 June 1932 - Cardinal Mercier |
Portrait 10c + 10c |
| Portrait 50c + 30c |
| Portrait 75c + 25c |
| Portrait 1fr + 2fr |
| Mercier At Malines |
| Mercier As Professor |
| Mercier At Malines |
| Mercier As Professor |
| Mercier Bestowing Blessings |
| 15 May 1942 - Tuberculosis |
Jean Bollandus |
| Andreas Vesalius |
| Simon Stevinus |
| Jean Van Helmont |
| Rembert Dodoens |
| Gerardus Mercator |
| Abraham Ortelius |
| Justus Lipsius |
| Christophe Plantin |
| circa 1951 - Belgian Railroads |
Mercury |
| 17 April 1958 - United Nations Organizations |
ILO |
| FAO |
| UN |
| World Bank |
| UNESCO |
| UN |
| ITU |
| IMF |
| WHO |
| UPU |
| ICAO |
| WMO |
| Refugees |
| GATT |
| UNICEF |
| AEA |
| 14 April 1962 - Gerard Mercator |
Mercator / Globe |
| 8 May 1965 - ITU Centennial |
ITU Insignia |
| 28 May 1966 - Scientific Heritage |
Iguanadon |
| African Museum Piece |
| Snowflakes |
| Royal Archives |
| Royal Library |
| Comet Arend-Roland / Telescope |
| Satellite / Rocket |
| 20 September 1969 - Apollo 11 |
Crew / Moon |
| 20 September 1969 - Apollo 11 |
Crew / Moon (souvenir sheet) |
| 15 May 1971 - World Telecommunications Day |
Satellite Dishes |
| 23 April 1972 - Apollo Missions |
Astronaut On Moon |
| 16 September 1972 - INTELSAT Earth Station |
Satellite |
| 24 March 1973 - WMO Centennial |
Metrorological Institute (Satellite Dishes) |
| 12 May 1973 - World Telecommunications Day |
Stylized Globe |
| 1 December 1974 - Adolphe Quetelet |
Quetelet |
| 22 June 1974 - Brussels Planetarium |
Planetarium |
| 21 June 1975 - International Womens’ Year |
Venus Symbol |
| 12 June 1976 - Royal Belgian Aero Club |
Jan Olieslagars (souvenir sheet of 1) (space plane in margin) |
| 28 April 1979 - Europa 1979 |
Heliograph / Satellite / Satellite Dish |
| 14 April 1980 - Telecommunications |
Telephone / Orbit |
| 1 March 1982 - Science |
Radioisotopes |
| Royal Belgian Observatory |
| Tuberculosis Bacilli |
| 6 November 1982 - Christmas 1982 |
Snowscape / Christmas Star |
| 23 April 1983 - Stamp Day 1983 |
World Communication Year Insignia |
| 9 May 1988 - Europa 1988 |
Satellite Dish |
| Combustion Engine |
| 6 May 1991 - Europa 1991 |
Olympus 1 |
| Hermes Space Plane |
| 7 October 1991 - TELECOM ‘91 |
TELECOM Insignia |
| 9 May 1994 - Europa 1994 |
Abbe Georges Lemaitre |
| Gerardus Mercator |
| 19 October 1998 - Association of Space Explorers |
People / Spacewalker |
| 22 October 2001 - Millennium |
sheet of 20 |
| Decroly |
| Energy |
| Aviation |
| Freud |
| Space Travel |
| Levi-Strauss |
| Genetics |
| de Chardin |
| Weber |
| Einstein |
| Penicillin |
| Prigogine |
| Barthes |
| de Beauvoir |
| Information |
| Keynes |
| Bloch |
| Atomic Energy |
| The Curies |
| Wittgenstein |
| 16 February 2004 - Belgians In the World |
souvenir sheet of 10 |
| Peter Piot |
| Dirk Frimaut / Frank De Winne (astronauts) |
| Christian de Duve |
| Christine Van Broeckhoven / Catherine Verfaillie |
| Queen Fabiola |
| Nicole Van Goethem |
| Jacques Rogge |
| Gabrielle Petit |
| Jacques Stibbe |
| Adrien Van Der Burch |
| 15 March 2004 - Tintin & the Moon |
souvenir sheet of 5 |
| Models of Tintin & Rocket |
| Rocket Sketch |
| Tintin On Spaceship Couch |
| Tintin On Ladder |
| Tintin On the Moon |
| 21 March 2005 - Youth Philately (Belgica 2006) |
 sheet of 5 (spacewalker in margin) |
| Space Shuttle / Spacewalker |
| Jet Plane |
| High-Speed Train |
| Formula 1 Race Car |
| Speedboat |
| like 2064a |
| like 2064b |
| like 2064c |
| like 2064d |
| like 2064e |
| booklet pane of 10 (2 x #s 2065-9) |
| 22 May 2007 - The Adventures of Tintin |
sheet of 15 |
| Tintin Au Pays Des Soviets |
| Tintin I Congo |
| Tintin In America |
| Dem Pharao Seng Zigaren |
| Dragon Cover |
| O Idolo Roubado |
| Tintin In A Boat |
| Zezlo Král’a Otakara |
| Tintin & Camels |
| Dularfulla Stjarnan |
| Tajemnica Jednorozca |
| Die Skat Van Rackham Die Rooie |
| Hergé |
| Tintin, Men & Table |
| El Templo Del Sol |
| Im Reiche Des Schwarzend Goldes |
| Päämääränä Kuu |
| Tintin.Men & Rocks |
| Ambardaki Kömür |
| Tintin On A Mountain |
| I Giolelli Della Castafiore |
| Penerbangan 714 |
| Tintin & Mayan Temple |
| Kuifje En De Alfa-Kunst |
