1 Vintém - Pedro II Pattern, Porto mint

The date range here is suspicious — a "vintém" denomination in this form, at this weight, attributed to the Porto mint in the late 17th to early 18th century, almost certainly places this within the broader monetary reforms Pedro II pursued to regularize Portuguese coinage after decades of debasement and wartime fiscal strain. The Gomes pattern classification signals this never entered circulation; it was a proposal, not a production issue.

Porto's mint activity during Pedro II's reign was intermittent and heavily subordinate to Lisbon.