Anastasia Grib: The Symbolic Repertoire of the Qur’anic Board in Islamic Africa;
Fig. 9: Qur’anic board from Western Sudan N° 9568 © Sam Fogg.

there is to read:
This type is representative of the boards from Western Sudan, and is also known as Nigerian. Here from the Sokoto region.

In Nigeria and Sudan, festive boards are very popular. These boards are rather elegant and may be used during initiation ceremonies. Among the distinguishing characteris-tics of the festive board is the polished surface of the wood, use of dark black/brown-ish ink, text written in Western Sūdānī script, and the zayyana ornament.

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