960 Réis - Carlos I Countermark SHIELD over '960 Réis, Brazil'

By the 1890s, Angola's colonial economy was drowning in debased and foreign silver that the Lisbon authorities could neither fully account for nor withdraw. The solution applied here was the countermark — a Portuguese royal shield punched onto Brazilian 960 réis coins, themselves already a recycled currency struck on Spanish colonial 8 reales flans. This piece is thus three monetary lives deep: Spanish colonial silver, restruck in Rio de Janeiro, then authenticated for Angolan circulation by royal decree.

Carlos I was assassinated in Lisbon in February 1908, making his countermarked issues for the African territories a relatively short administrative window.