Prova pieces from the Imprensa Nacional - Casa da Moeda were struck as internal presentation and approval specimens, not intended for general release. Portuguese provas of this period exist in extremely limited numbers and were produced to confirm die quality and alloy consistency before authorizing a full production run — meaning some provas represent types that never made it to circulation at all.
Prova pieces from the Imprensa Nacional - Casa da Moeda were struck as internal presentation and approval specimens, not intended for general release. Portuguese provas of this period exist in extremely limited numbers and were produced to confirm die quality and alloy consistency before authorizing a full production run — meaning some provas represent types that never made it to circulation at all.