1 Mil Réis Thesouro Nacional, 2nd print

Perkins, Bacon & Petch won the contract for Brazilian treasury notes during a period when the firm was handling security printing for multiple sovereign clients simultaneously — the same intaglio technology used for early British colonial stamps was applied here. The steel-engraved plates produced extremely fine line work that local counterfeiters in Rio found nearly impossible to replicate with available equipment.

The "2nd print" designation distinguishes it from the 1833 first emission under essentially the same design mandate. Brazil's chronic shortage of small-denomination currency in the 1840s meant these notes moved through many hands quickly, and surviving examples with crisp paper are genuinely uncommon as a direct consequence of heavy use rather than poor storage.