Sierra Leone
Visar nu: Sierra Leone - Postfrimärken (1859 - 2018) - 1 frimärken.
1985
The 40th Anniversary of I.C.A.O.
28. februari WM: Inga Perforering: 14
![[The 40th Anniversary of I.C.A.O., Typ MF]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MF-s.jpg)
![[The 40th Anniversary of I.C.A.O., Typ MG]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MG-s.jpg)
![[The 40th Anniversary of I.C.A.O., Typ MH]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MH-s.jpg)
![[The 40th Anniversary of I.C.A.O., Typ MI]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MI-s.jpg)
| Nummer | Typ | D | Färg | Beskrivning |
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| 828 | MF | 70C | flerfärgad | Eddie Rickenbacker and Spad "XIII", 1918 | 1,76 | - | 1,76 | - | USD |
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| 829 | MG | 1.25Le | flerfärgad | Samuel P. Langley and "Aerodrome A", 1903 | 2,93 | - | 2,93 | - | USD |
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| 830 | MH | 1.30Le | flerfärgad | Orville and Wilbur Wright with Wright Flyer I, 1903 | 2,93 | - | 2,93 | - | USD |
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| 831 | MI | 2Le | flerfärgad | Charles Lindbergh and "Spirit of St. Louis", 1927 | 5,87 | - | 5,87 | - | USD |
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