Development of the Civil Airliner 1997
Now showing: Sierra Leone - Postage stamps - 1997 - Development of the Civil Airliner - 4 stamps.
1997
Development of the Civil Airliner
6. October WM: None Perforation: 14¼
![[Development of the Civil Airliner, type ]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/2989-b.jpg)
| No. | Type | D | Color | Description |
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| 2989 | CNR | 600Le | multicoloured | Benoist Type XIV | 1.56 | - | 1.56 | - | USD |
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| 2990 | CNS | 600Le | multicoloured | Douglas DC-3 | 1.56 | - | 1.56 | - | USD |
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| 2991 | CNT | 600Le | multicoloured | Junkers JU52/3m Seaplane | 1.56 | - | 1.56 | - | USD |
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| 2992 | CNU | 600Le | multicoloured | Sikorsky S-42 Flying Boat | 1.56 | - | 1.56 | - | USD |
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| 2989‑2992 | Minisheet | 8.34 | - | 8.34 | - | USD | |||||||||||
| 2989‑2992 | 6.24 | - | 6.24 | - | USD |
