Catalog
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| Issuer | Royal Thai Mint |
|---|---|
| Year | 1957-1980 |
| Type | Standard circulation coin |
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| Obverse description | Uniformed bust of King Bhumibol Adulyadej (Rama IX) in left-facing profile, depicted in military dress with epaulettes and decorations visible on the chest. The effigy occupies the central field, rendered in moderate relief with fine detail on the uniform and facial features. A Thai script legend reading the king's name and royal title curves along the left and right periphery of the field, flanked by a decorative beaded inner border. |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | ภูมิพลอดุลยเดช รัชกาลที่๙ (Translation: Bhumibol Adulyadej Rama IX) |
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| Additional information |
Thailand's shift to aluminium bronze for this denomination in 1957 was driven largely by the rising cost of the pure copper alloys used in earlier issues, a chronic concern for smaller denominations across Southeast Asian mints during the postwar decades. The same composition was adopted by several regional neighbors around this period for identical economic reasons.
The series ran through 1980, spanning some of the most turbulent years in Thai political history — including multiple coups and constitutional rewrites — with the mint continuing production largely uninterrupted throughout.