Catalogus
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| Uitgever | Kingdom of Portugal |
|---|---|
| Jaar | 1433-1438 |
| Type | Log in om details te zien |
| Waarde | Log in om details te zien |
| Valuta | Log in om details te zien |
| Samenstelling | Log in om details te zien |
| Gewicht | Log in om details te zien |
| Diameter | Log in om details te zien |
| Dikte | Log in om details te zien |
| Vorm | Round (irregular) |
| Techniek | Log in om details te zien |
| Oriëntatie | Log in om details te zien |
| Graveur(s) | Log in om details te zien |
| In omloop tot | Log in om details te zien |
| Referentie(s) | Log in om details te zien |
| Beschrijving voorzijde | Log in om details te zien |
|---|---|
| Schrift voorzijde | Latin (uncial) |
| Opschrift voorzijde | Log in om details te zien |
| Beschrijving keerzijde | Log in om details te zien |
| Schrift keerzijde | Log in om details te zien |
| Opschrift keerzijde | Log in om details te zien |
| Rand | Plain |
| Muntplaats | Log in om details te zien |
| Oplage | Log in om details te zien |
| Aanvullende informatie |
Duarte I's reign lasted just five years before his death from plague in 1438, making all issues from this period inherently short-lived. The "Preto" designation — from the Portuguese for black — reflects the heavily debased copper alloy used for these low-denomination pieces, which darkened aggressively in circulation. Porto's mint was one of several active under Duarte, though output was modest given the reign's brevity and the crown's financial pressures inherited from João I's costly North African campaigns at Ceuta.