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| 背面描述 | A left-facing bust of a Mesoamerican eagle warrior occupies the central field, rendered in a stylized pre-Columbian artistic manner, wearing a distinctive feathered eagle helmet. The denomination $1 appears to the left of the bust in the field, while the date 1979 is positioned below. The design reflects the broader series of Mexican coinage celebrating indigenous heritage. |
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| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 1979 |
| 附加信息 |
Pattern coinage from the Casa de Moneda rarely escapes the mint's own archives, and the 1979 brass trial pieces were struck specifically to test alloy substitutes as silver had long since been abandoned for circulation coinage and rising base-metal costs were forcing the mint to evaluate cheaper alternatives. PL#146C sits in a small family of compositional trials from this period, most of which never advanced beyond internal review.