Muri Bhalissa: Sierra Leone - Bolol tal-posta (1970 - 1979) - 6 bolol.
14. January WM: Xejn Perforazzjoni: 13½
![[The 10th Anniversary of African Development Bank, Tip ED]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/ED-s.jpg)
![[The 10th Anniversary of African Development Bank, Tip ED1]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/ED1-s.jpg)
25. August WM: Xejn Perforazzjoni: 13 x 13½
![[The 70th Anniversary of the Birth of President Siaka Stevens, 1905-1988 and New Congo Bridge Opening, Tip EE]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/EE-s.jpg)
![[The 70th Anniversary of the Birth of President Siaka Stevens, 1905-1988 and New Congo Bridge Opening, Tip EE1]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/EE1-s.jpg)
3. October WM: Xejn Perforazzjoni: 13 x 13½
![[The 1st Anniversary of Mano River Union, Tip EF]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/EF-s.jpg)
![[The 1st Anniversary of Mano River Union, Tip EF1]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/EF1-s.jpg)
