The 40th Anniversary of I.C.A.O. 1985
Now showing: Sierra Leone - Postage stamps - 1985 - The 40th Anniversary of I.C.A.O. - 4 stamps.
1985
The 40th Anniversary of I.C.A.O.
28. February WM: None Perforation: 14
![[The 40th Anniversary of I.C.A.O., type MF]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MF-s.jpg)
![[The 40th Anniversary of I.C.A.O., type MG]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MG-s.jpg)
![[The 40th Anniversary of I.C.A.O., type MH]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MH-s.jpg)
![[The 40th Anniversary of I.C.A.O., type MI]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/MI-s.jpg)
| No. | Type | D | Color | Description |
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| 828 | MF | 70C | multicoloured | Eddie Rickenbacker and Spad "XIII", 1918 | 1.56 | - | 1.56 | - | USD |
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| 829 | MG | 1.25Le | multicoloured | Samuel P. Langley and "Aerodrome A", 1903 | 2.60 | - | 2.60 | - | USD |
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| 830 | MH | 1.30Le | multicoloured | Orville and Wilbur Wright with Wright Flyer I, 1903 | 2.60 | - | 2.60 | - | USD |
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| 831 | MI | 2Le | multicoloured | Charles Lindbergh and "Spirit of St. Louis", 1927 | 5.21 | - | 5.21 | - | USD |
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| 828‑831 | 11.97 | - | 11.97 | - | USD |
