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4 Reales - Carlos III
| Issuer | Mexico City Mint |
|---|---|
| Year | 1772-1786 |
| Type | Log in to see details |
| Value | 4 Reales |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| 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 | Crowned Royal Spanish arms displayed between the Pillars of Hercules, each pillar surmounted by a crown and draped with a banner inscribed with the motto. The central shield is quartered with the castles of Castile and lions of León, with a pomegranate in base and three fleurs-de-lis in the central inescutcheon representing the Bourbon dynasty. The mint mark, assayer initials, and denomination appear flanking the shield within the legend. |
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| Additional information |
The 1772 date marks a hard break in Mexican colonial coinage: that year, royal decree mandated the transition from cob (macuqueña) production to fully milled portrait coinage at all American mints. Carlos III had pushed the reform partly to curb the chronic fraud and underweighting that plagued the cob system, which had embarrassed the Crown for decades in European trade.
KM#97 sits at the junction of two assayer periods at Mexico City, and pieces bearing the FM assayer mark of Fernando de Mangino command closer scrutiny for die varieties documented by Cayon and Pellicer.