Centenary of World Meteorological Organisation
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| Country: | Belgium |
|---|---|
| Issue: | Centenary of World Meteorological Organisation |
| Date: | 1973-03-24 |
| Print: | Photogravure |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 9 Belgian franc |
| Print run: | 1000 |