20 Dinars

Sudan's late 1990s coinage was issued against a backdrop of catastrophic economic deterioration — the country was under comprehensive U.S. sanctions imposed in 1997, had defaulted on its IMF obligations, and was running inflation that rendered low-denomination coinage essentially worthless within months of issue. The 20 Dinars denomination itself only existed because the earlier Sudanese pound had been replaced by the dinar at a rate of 1:10 in 1992, a redenomination that acknowledged but failed to stop the currency's collapse.