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| 表面の説明 | Central device depicts the Prasat (royal spired throne hall), a traditional Thai architectural symbol of royal authority, rendered in fine relief and flanked symmetrically by ornate floral and foliate scrollwork. Three tiered spired towers are visible, with the central spire surmounted by radiating lines suggesting divine light or the royal flame. The composition is enclosed within a beaded border running the full circumference of the coin. The overall design reflects the characteristic Thai artistic style of the mid-nineteenth century, emphasizing symmetry and elaborate decorative detail. |
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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 | ログイン して詳細を見る |
| 裏面の文字体系 | Thai / Chinese |
| 裏面の銘文 | ログイン して詳細を見る |
| 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 |
Rama IV — Mongkut — authorized tin coinage as a practical concession to the demands of small-denomination trade at a moment when Siam was under intense commercial pressure from British and French colonial expansion on its borders. The 1855 Bowring Treaty with Britain had opened Siamese markets and accelerated the need for a rationalized currency system capable of handling petty transactions that bullet coins never efficiently served.
Tin was the obvious local solution — Siam had abundant peninsular tin resources — but the alloy's softness means surviving examples with full detail are genuinely scarce.