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| 表面の説明 | A detailed high-relief depiction of a section of the Great Wall of China occupies the central field, rendered with fine topographic detail showing battlements, watchtowers, and the wall snaking across rugged mountainous terrain. The Chinese legend 中华人民共和国 (People's Republic of China) arcs across the upper field in bold Chinese characters. The date 1992 appears in the lower exergue in Arabic numerals against a frosted background, contrasting with the mirror-like proof field. |
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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 | Chinese/Latin |
| 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 |
China's platinum bullion program of the late 1980s and early 1990s was never a commercial priority for the People's Bank — mintages were kept extremely low and distribution outside domestic channels was inconsistent. The 1992 seismograph issue is among the scarcer dates in the series, with reported production figures well under 1,000 pieces.
The instrument honored on this coin was invented by Zhang Heng in 132 AD during the Eastern Han dynasty — the world's first seismoscope, capable of detecting distant earthquakes before any messenger could arrive on horseback.