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| 正面描述 | Uniface obverse trial strike with an entirely blank central field, devoid of any effigy, legend, or device. The field is bordered by a continuous decorative inner border composed of repeated C-shaped or scroll-form elements, creating an ornate dentilated ring that frames the unworked field. No inscription or additional design element is present on this face, consistent with its nature as a reverse trial piece. |
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| 正面文字 | 登录 以查看详情 |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | 登录 以查看详情 |
| 背面文字 | Latin |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | 登录 以查看详情 |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
Pattern coinage from Mexico's late 1970s period falls into a complicated institutional story. The Banco de México was actively evaluating design and metal options as silver had already been removed from circulation coinage years earlier — the last circulating silver pesos dated to 1967. A reverse trial in silver at this date suggests the mint was testing die quality or finish standards against a precious metal blank, not proposing a return to silver currency.
The Casa de Moneda de México has a long history of producing trial and pattern pieces for internal evaluation that never entered formal auction or collector channels in their time, making documentation sparse.