Sierra Leone
Montre maintenant: Sierra Leone - Timbres-Poste (1859 - 2018) - 2 Timbres-poste.
1986
Appearance of Halley's Comet
1. avril WM: Aucun Perforation: 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. octobre WM: Aucun
![[Appearance of Halley's Comet - Issues of 1986 Overprinted, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sierra-Leone/Postage-stamps/0965-b.jpg)
