The Porto mint operated intermittently and under chronic resource pressure throughout Pedro II's reign, which is reflected in the uneven quality of surviving pieces from this series. Lisbon held institutional priority for bullion allocation, and Porto frequently worked with whatever silver reached it from Brazil via secondary channels — a supply chain that was neither regular nor guaranteed.
Pedro II had seized effective power from his mentally incapacitated brother Afonso VI in 1668, ruling first as regent before formally taking the crown in 1683 — the precise opening date of this type's issue.
The Porto mint operated intermittently and under chronic resource pressure throughout Pedro II's reign, which is reflected in the uneven quality of surviving pieces from this series. Lisbon held institutional priority for bullion allocation, and Porto frequently worked with whatever silver reached it from Brazil via secondary channels — a supply chain that was neither regular nor guaranteed.
Pedro II had seized effective power from his mentally incapacitated brother Afonso VI in 1668, ruling first as regent before formally taking the crown in 1683 — the precise opening date of this type's issue.