Semipostal stamps of Mauritania
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semipostal
1915 ovpted unwmk (no perf info)
| X | 10c | rose & redorg | ovpt, crossing the desert | .30–1.00 | .30–1.00 |
1918 ovpted
| X | 15c | dkbrn & blk | ovpt, crossing the desert | .30–1.00 | .30–1.00 |
1938 Curie issue p. 13
| - | 1.75fr+50c | brtultra | Pierre & Marie Curie |
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