10 Réis - Luiz I Countarmarked over 5 Réis/ Maria I/Azores

Portugal's Azorean administration periodically countermarked existing circulating copper to revalue or re-authorize worn stock rather than fund entirely new strikings. This piece began life as a 5 Réis of Maria I — coins already decades old by 1871 — and was officially doubled in face value by the crowned countermark of Luiz I. The practice was fiscally pragmatic but produced pieces of layered authority: Maria I's original issue beneath the revalidating stamp of a monarch who wouldn't be born for another generation after her reign ended.