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| 正面描述 | Cast iron cash-type coin featuring a central square hole (穿) flanked by four Chinese characters arranged in cruciform fashion within the coin's field. Reading top-to-bottom and right-to-left in the traditional manner, the legend reads 寛永通寶 (Kan'ei Tsūhō), meaning 'Currency of Kan'ei,' the era name adopted as the standard monetary inscription for this long-running series. The characters are rendered in a bold, slightly archaic kaisho (regular script) style characteristic of Edo-period cast coinage. A plain raised rim borders the design, and the coin's surface shows the typical texture and irregularities associated with sand-casting production. |
|---|---|
| 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 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | Plain |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
The Kan'eitsūhō series had circulated in copper since the 1630s, but the iron issues of 1768–1772 were an emergency measure — copper supplies were under sustained pressure from both domestic demand and the Shogunate's ongoing export obligations through Nagasaki. Iron coins were deeply unpopular with the merchant class, who found them prone to rust and difficult to distinguish by touch in low light. The 久 reverse designation identifies the Mito domain mint, one of several regional facilities pressed into service to meet quotas the central Edo mint could not fill alone.