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Cruzado 'R-P, 7 castles' - João III 3rd type, Porto mint
| Issuer | Kingdom of Portugal |
|---|---|
| Year | 1537-1538 |
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| Value | Log in to see details |
| Currency | Real (1517-1835) |
| Composition | Log in to see details |
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| Diameter | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
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| Reverse description | Log in to see details |
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| Reverse lettering | IN HOC SIGNO VINCES |
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| Additional information |
João III's monetary reforms of the 1530s produced several short-lived cruzado variants as the crown worked through successive adjustments to gold fineness and weight standards. This third-type issue from the Porto mint is among the briefest in the sequence — struck across a window of roughly one year before further revision superseded it. The Porto mint itself was a secondary operation, and its output for this type was substantially lower than Lisbon's, which accounts for the relative difficulty of locating well-attributed examples today.
The 'R-P' mintmark pairing and the seven-castle shield configuration are the identifying details that separate this from the second type at attribution.