Sierra Leone
Now showing: Sierra Leone - Postage stamps (1859 - 2018) - 2 stamps.
1986
Appearance of Halley's Comet
1. April WM: None Perforation: 14ΒΌ
![[Appearance of Halley's Comet, type OH]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OH-s.jpg)
![[Appearance of Halley's Comet, type OI]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OI-s.jpg)
![[Appearance of Halley's Comet, type OJ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OJ-s.jpg)
![[Appearance of Halley's Comet, type OK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OK-s.jpg)
1986
Appearance of Halley's Comet - Issues of 1986 Overprinted
15. October WM: None
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type OI1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OI1-s.jpg)
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type OJ1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OJ1-s.jpg)
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type OH1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OH1-s.jpg)
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type OK1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/OK1-s.jpg)