Sierra Leone
Viser nå: Sierra Leone - Postfrimerker (1859 - 2018) - 2 frimerker.
1986
Appearance of Halley's Comet
1. April VM: Ingen Perforering: 14¼
![[Appearance of Halley's Comet, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/0907-b.jpg)
1986
Appearance of Halley's Comet - Issues of 1986 Overprinted
15. October VM: Ingen
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/0965-b.jpg)
