Sierra Leone
Now showing: Sierra Leone - Postage stamps (1859 - 2018) - 1 stamps.
1990
Exploration of Mars
15. January WM: None Perforation: 14
![[Exploration of Mars, type ]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/1394-b.jpg)
| No. | Type | D | Color | Description |
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| 1394 | AGC | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1395 | AGD | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1396 | AGE | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1397 | AGF | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1398 | AGG | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1399 | AGH | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1400 | AGI | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1401 | AGJ | 175Le | multicoloured | 3.28 | - | 3.28 | - | USD |
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| 1402 | AGK | 175Le | ultramarine | 3.28 | - | 3.28 | - | USD |
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