カタログ
| 表面の説明 | Portrait vignette of President Nimeiri at left, wearing a white turban and glasses, rendered in intaglio against a guilloche underprint in green and brown tones. The national arms appear at centre within an ornate circular frame, flanked by Arabic inscriptions and the bank name at top. The Unity Monument vignette is visible at right, with the denomination numeral '20' in large format at lower left and Arabic denomination text at lower right. |
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| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | ログイン して詳細を見る |
| 裏面の銘文 | ログイン して詳細を見る |
| 署名 | ログイン して詳細を見る |
| 偽造防止技術 | Watermark |
| 偽造防止の説明 | ログイン して詳細を見る |
| バリエーション | ログイン して詳細を見る |
| コメント |
The Bank of Sudan's engagement with Thomas De La Rue for this series reflected a pattern common among newly consolidated African central banks of the period — outsourcing high-denomination production to established European security printers while domestic infrastructure remained limited. Sudan was simultaneously managing the economic strain of absorbing refugees from the Chad conflict and the early pressures of southern insurgency, both of which were quietly destabilizing the pound well before the note's withdrawal.
The watermark is the sole mechanical security feature — no security thread, no fluorescent inks. Relatively straightforward specification for De La Rue at this production date, suggesting cost constraints informed the brief.