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| 表面の説明 | ログイン して詳細を見る |
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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 | Printed in brown on pale underprint, the reverse centres on a circular vignette containing an allegorical female figure seated with a shield, a sailing ship visible in the background. Ornate guilloche rosettes flank the denomination value panels on either side, with the printer's imprint along the lower margin. |
| 裏面の銘文 | BANCO NACIONAL ULTRAMARINO 0$50 (Translation: National Bank Overseas) |
| 署名 | ログイン して詳細を見る |
| 偽造防止技術 | ログイン して詳細を見る |
| 偽造防止の説明 | ログイン して詳細を見る |
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| コメント |
Banco Nacional Ultramarino's wartime fractional issues for Portuguese Angola emerged from a practical crisis: the near-total disappearance of silver coinage from circulation after 1914, a problem common across colonial Africa as metal was hoarded and diverted to Europe. The seal type classification — I, II, and III — distinguishes successive overprint or authentication variants applied to what was essentially the same printed stock, a field detail that matters considerably for accurate attribution since the types are frequently conflated in older references.
Bradbury Wilkinson produced the base notes in London. The type III seal is the scarcest of the three variants.