Stamps, issuer=Mauritania-1917-15c on-desc-id
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Mauritania
postage1922 provisional issue ovpted unwmk (no perf info)
| - | 65c on 15c | dkbrn & blk | crossing the desert |
semipostal
1918 ovpted
| X | 15c | dkbrn & blk | ovpt, crossing the desert | .30–1.00 | .30–1.00 |
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