Odd stamps : 08 Stamps with special cuts - 03 c

Africa had a nice contribution when it comes to triangular stamps (see before), but how about diamond shapes? Well also here, the ebony continent has a lot to offer for collectors of odd stamps.
Far from complete, but a nice teaser from all over Africa.

First stop is in the North, Egypt :<
U.A.R. : United Arab Republic

to the West, a small island formerly under Portuguese authority

All the way down there's another portuguese colony, Angola.
same style of stamps :

Still at the western side, but again a bit up north there's Liberia and Guinea

Let's end this journey in the heart of Africa :
two former colonies of Belgium : Congo Demotratic Republic and Burundi