There is a missing banknote from the Central Bank of Sudan issuing entity.
https://en.numista.com/catalogue/issuing_entity.php?id=944
Sabir Mohammed Hassan, Governor (1998-2011)

He was the bank governor before and after the banks name change, so I’ve simply copied the signature from the Bank of Sudan issuing entity as it’s the same.
Example note from the Central Bank issuer with the missing signature.
Thanks,
Tony