Stamps of Mauritania, 27 Jul 1990
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postage
1990, Jul 27 Mineral Resources issue unwmk (no perf info)
| - | 60um | multi |
1990, Jul 27 20th Anniversary of Multinational Postal Training School issue
| - | 50um | multi |
1990, Jul 27 International Literacy Year issue
| - | 60um | multi |
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