2 1/2 Escudos

Banco Nacional Ultramarino served as the colonial note-issuing authority across Portuguese overseas territories, and this 2½ Escudo denomination — an awkward fraction that reflects the transitional arithmetic of the 1911 Republican monetary reform, which set 1000 Réis equal to 1 Escudo — was printed by Bradbury Wilkinson at their New Malden works in Surrey. The fraction persisted in circulation long after it created practical inconvenience, largely because the Portuguese Treasury was slow to mint adequate coinage for the lower denominations.

Pick 56 likely served multiple territories under BNU's remit, though the specific overprint or place-of-payment text determines which colonial market received any given example.