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| 表面の説明 | The obverse bears a counterstamp applied to the host coin (50 Centimos, KM#143), featuring a raised circular punch with the counterstamp date 1923 at center, enclosed within a raised ring. Flanking the central circle is an open wreath of laurel and olive branches tied with a ribbon at the base. The legend 'AMERICA CENTRAL' arcs across the upper field, while the fineness mark '900 M' appears to the left and the assayer initials appear at the bottom, all separated by five-pointed stars at the lower flanks. |
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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 | The reverse displays the host coin's original design: the denomination 'UN COLON' inscribed in two lines within a raised central circle, itself encircled by an ornate scrollwork cartouche. The legend 'REPUBLICA DE COSTA RICA' arcs around the upper periphery, while the host coin date '1903' appears at the lower right, reading clockwise. Two five-pointed stars flank the lower legend, and the entire design is bordered by a continuous beaded rim. |
| 裏面の文字体系 | ログイン して詳細を見る |
| 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 |
Costa Rica's 1923 counterstamp program was a practical response to chronic coin shortages following World War I disruptions to the mint supply chain. Rather than strike new coinage outright, the government authorized the counterstamping of existing foreign silver — primarily older Central American and South American pieces already in circulation — to legitimize them as legal tender denominated in colones.
KM#164 encompasses a notably heterogeneous host coin population, which means condition and strike quality vary entirely with the underlying piece, not with any Costa Rican minting standard.