| Name | Issues/Designs | |||
| King Ferdinand birth | 1452 | — | - 500th anniversary of the birth of ... | |
| Guinea missions | 1883 | — | - ... 75th | |
| Queen Isabella birth | 1453 | — | - Isabella 500th syns. Isabella birth, Isabella I birth, Isabella the Catholic birth | |
| Universal Postal Union founding | 1874 | — | syns. UPU founding, U.P.U. founding |