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| 表面の説明 | Draped bust of King Carlos III facing right, with elaborately curled and ribboned hair. The portrait is rendered in a naturalistic baroque style, set within a beaded border. The encircling legend reads CAROLUS III · DEI · G · · 1770 · with the date appearing in the lower field below the truncation. The effigy displays fine engraving detail typical of Spanish colonial trial coinage of the period. |
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| 表面の文字体系 | ログイン して詳細を見る |
| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | Plain, unworked reverse field, consistent with the nature of this piece as an obverse trial strike. The surface shows no design elements, legends, or devices, confirming that only the obverse die was applied during the striking process. The metal exhibits natural oxidation and surface texture typical of a tin trial piece. |
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| 縁 | ログイン して詳細を見る |
| 鋳造所 | ログイン して詳細を見る |
| 鋳造数 | ログイン して詳細を見る |
| 追加情報 |
Pattern coinage for Carlos III's Mexican issues was part of a broader administrative overhaul of the colonial mint system in the 1760s and 1770s, as the Bourbon reforms pushed to standardize and modernize production across New Spain. Tin trial pieces occupy an unusual niche — they were struck not as presentation pieces but as mechanical proofs of die alignment and press function, essentially disposable working documents of the minting process.
Very few tin trials from the Mexico City mint survived, as the material was considered valueless once the production run was approved.