50 Dinars

Sudan's economic deterioration through the early 1990s was severe enough that the 50 Dinars represented meaningful purchasing power at issue — yet inflation was already moving fast enough to erode that within months. The Dinar itself was only introduced in 1992, replacing the Sudanese Pound at par as part of a broader monetary restructuring under the Bashir government's Islamic economic reforms, which also pushed the formal banking system toward interest-free structures.

Setec Oy, the Bank of Finland's security printing subsidiary, handled a surprisingly broad range of African and Middle Eastern central bank contracts during this period. Their Helsinki-printed notes are generally well-executed technically, with reliable thread placement.