目录
查看完整图片 — 免费注册
使用Google继续 — 免费
或用邮箱注册
为什么需要注册？只是为了防止机器人访问我们的目录。您的邮箱完全保密——我们绝不会分享或在未经您许可的情况下发送任何内容。我们向您保证！
| 正面描述 | 登录 以查看详情 |
|---|---|
| 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 | The reverse presents a plain, unadorned field enclosed by a beaded inner border running the full circumference. At center, the two-character Japanese inscription 試作 (shisaku, meaning 'prototype' or 'trial piece') is incused in bold strokes, confirming the experimental nature of the piece. The simplicity of the reverse is characteristic of pattern and trial coin production at the Japan Mint, where the reverse was often left largely blank to focus evaluation on the obverse design. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 試 作 (Translation: Prototype) |
| 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 |
Japan's postwar coinage redesign involved extensive prototype testing before the 10 Yen series was finalized in brass-clad bronze for circulation in 1951. This particular prototype, catalogued under KM Pn102, reflects an intermediate stage in that material evaluation — brass was under serious consideration before the final alloy composition was settled. Prototypes from this program rarely escaped the Mint's own archives.