Stamps of Belgium, 5 base month
1 to 50 of 378
postage
1921, May 26 unwmk (no perf info)
| - | 50c | dkbl | King Albert I |
1924, May 24 p. 11.5
| - | 5fr | redbrn | King Albert I |
1950, May 1 Caisse générale d'épargne et de retraite 100th issue
| X | 1.75fr | sep |
1952, May 14 UPU Congress 1952 issue (11 stamps)
| X | 80c | grn | Francois de Tassis | |||
| X | 1.75fr | redorg | Jean-Baptiste | |||
| X | 2fr | brn | Baron Leonard | |||
| - | 2.50fr | car | Count Lamoral I | |||
| X | 3fr | olbis | Count Leonard II | |||
| X | 4fr | dkbl | ||||
| - | 5fr | redbrn | ||||
| - | 5.75fr | blvio | ||||
| X | 8fr | gray | ||||
| X | 10fr | rosevio | ||||
| - | 20fr | brn |
1952, May 14 z1952 issue (5 stamps)
| X | 1.50fr | grngray | King Baudouin | |||
| X | 2fr | red | King Baudouin | |||
| X | 4fr | bl | King Baudouin | |||
| X | 50fr | graybrn | King Baudouin | |||
| X | 100fr | red | King Baudouin (1958) |
1955, May 11
| X | 2fr | viobrn | Textile Exhibition |
1955, May 11 Emile Verhaeren 100th issue
| X | 20c | blk | Emile Verhaeren |
1957, May 19 Stamp Day 1957 issue
| X | 2fr | dkredlil | Letter to Maximilian I |
1962, May 19
| X | 2fr | ind | Gochet |
1962, May 19
| X | 3fr | orgbrn | Triest |
1963, May 7 Paris postal conference 100th issue
| - | 6fr | multi |
1963, May 8
| X | 3fr | multi | movement for peace | |||
| X | 6fr | multi | movement for peace |
1964, May 16 Ostend 1000th issue
| X | 3fr | multi | — | — |
1965, May 10 ITU 100th issue
| X | 2fr | brnpur | ITU emblem |
1965, May 27
| X | 1fr | graybl | Abbey staircase |
1965, May 27
| X | 2fr | brn | St Jean Berchman |
1966, May 28 scientific heritage issue (7 stamps)
| X | 1fr | Iguanodon skeleton | ||||
| X | 2fr | multi | head&spiral | |||
| X | 2fr | multi | snowflakes | |||
| X | 3fr | multi | Seal of Hendrik I from year of 1197 | |||
| X | 3fr | multi | ||||
| X | 6fr | multi | ||||
| X | 8fr | multi |
1967, May 2 Europa 1967 issue
| X | 3fr | multi | Europa cogwheels | — | — | |
| X | 6fr | multi | Europa cogwheels | — | — |
1969, May 31 NATO 20th issue
| X | 6fr | brn & bl | NATO emblem |
1969, May 31 ILO 50th issue
| X | 3fr | multi |
1970, May 1 Europa 1970 issue
| X | 3.50fr | multi | ||||
| X | 7fr | multi |
1971, May 1 Europa 1971 issue
| X | 3.50fr | Europa links | ||||
| - | 7fr | Europa links |
1971, May 15 World Telecommunications Day issue
| - | 7fr | multi |
1972, May 13 BELGA 50th issue
| - | 2.50fr | multi |
1973, May 12 5th International Telecommunications Day issue
| - | 3.50fr | multi |
1973, May 12 25th Liege fair issue
| - | 4.50fr | multi | — | — |
1 to 50 of 378