Why is this a FAO coin?

Hi there fellow collectors,

I noticed this coin:
https://en.numista.com/catalogue/pieces6124.html
and the catalog says it is a FAO coin, but it has nothing to connect it to FAO, so does anyone know whether this is correct and if so, why ?

Best regards, Kees

Not sure myself, but all these pages also say F.A.O. about that coin ...
http://www.catawiki.com/catalog/coins/countries/ghana/2170853-ghana-1-cedi-1979-f-a-o

http://worldcoingallery.com/countries/display_wd.php?dir=img&image=74-19&desc=Ghana%20km19%201%20Cedi%20(1979)%20FAO&query=Ghana

http://bencoins.com/fao/moneda.php?id=51&catwhere=all
so I guess Numista page is correct.