100 Pounds

Sudan's currency situation between 2019 and 2021 was anything but stable. The country lost roughly a third of its oil revenue base when South Sudan seceded in 2011, and by the time this note entered circulation, annual inflation had crossed 300 percent — making the 100 Pound denomination nearly worthless in practical terms within months of issue. The government was printing to cover a fiscal gap it had no other means to close.

Production at the Sudan Currency Printing Press in Khartoum kept the entire operation domestic, which limited access to the more sophisticated security features used by international banknote printers. A watermark is the sole listed security element — thin protection for a denomination that hyperinflation had already rendered inconsequential.