Biffeche is a small Kingdom on the borders of Senegal and Mauritanie, on the Senegal River in the Sahel region of West Africa. It has been a Kingdom from time immemorial, first mentioned by the French in early XVII Century documents. An unusual feature of this fundamentally African Kingdom is that since 1963, the Kings of Biffeche have been white.

The king's monument seen on the coin:

Closer view of the text:

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Kingdom of BiffecheLINK:
Biffeche in Wikipedia