| Name | Issues/Designs | |||
| Pedro Alvares Cabral birth | 1468 | — | - ... 500th | |
| CCTA founding | 1950 | — | - ... 10th | |
| Vasco da Gama birth | 1498 | — | - ... 500th | |
| International Meteorological Organization founding | 1873 | — | syns. IMO founding | |
| ITU founding | 1865 | — | - ... 100th syns. I.T.U. founding | |
| Lusiads opening | 1572 | — | - ... 400th | |
| Manuel I birth | 1469 | — | - ... 500th | |
| Sao Paulo founding | 1554 | — | - ... 400th | |
| TAP founding | 1953 | — | - airline anniversary | |
| Universal Postal Union founding | 1874 | — | syns. UPU founding, U.P.U. founding |