10 Escudos

Bradbury, Wilkinson produced this note for Banco Nacional Ultramarino, the Lisbon-based institution that held a monopoly on currency issuance across Portugal's overseas territories throughout the colonial period. The specific territory of issue isn't recorded in standard references for P#42 — BNU operated across Angola, Mozambique, Cape Verde, São Tomé, Portuguese Guinea, and Timor, and used near-identical series architecture across multiple colonies simultaneously, which creates persistent cataloging ambiguity for notes where the destination territory isn't overprinted or otherwise differentiated.

Bradbury, Wilkinson's intaglio work for BNU in the 1940s was technically accomplished but the notes were prone to edge splitting along the short dimension under tropical humidity conditions.