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100 Colones Inter-American Human Rights Convention, Reverse Trial Strike
| Issuer | Costa Rica |
|---|---|
| Year | 1970 |
| Type | Coin pattern |
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| Obverse description | Central device depicts a stylized pre-Columbian gold pendant in the form of a condor or vulture effigy, rendered in high relief with outstretched wings and a prominent headdress, referencing Costa Rica's indigenous gold artistry. The curved wings extend symmetrically to either side of the bird's body, which terminates in a broad trapezoidal base. The curved legend ARTE INDIGENA DE ORO arcs around the upper portion of the field, separated by dashes, within a beaded border. The denomination 100 COLONES appears in two lines below the central device, also within the beaded border. |
|---|---|
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| Obverse lettering | - ARTE INDIGENA DE ORO - 100 COLONES |
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| Additional information |
Trial strikes — pruebas de reverso — occupy an odd corner of Latin American numismatics: produced for official approval of a reverse design before final dies are committed to production, they exist in tiny numbers and rarely enter public circulation at all. This piece relates to Costa Rica's 1969 hosting of the Inter-American Specialized Conference on Human Rights, the meeting that produced the American Convention on Human Rights, signed in San José that November.
Gold-plated brass was standard for trial pieces of this period, allowing the mint to assess die detail without committing to precious metal.