| 发行方 | Japan |
|---|---|
| 年份 | 870-890 |
| 类型 | Standard circulation coin |
| 面值 | 1 Mon |
| 货币 | Mon (683-1953) |
| 材质 | Copper |
| 重量 | 2.8 g |
| 直径 | 19.5 mm |
| 厚度 | |
| 形状 | Round with a square hole |
| 制作工艺 | Cast |
| 方向 | |
| 雕刻师 | Fujiwara Ujimichi |
| 流通至 | 25 November 0987 |
| 参考资料 | DHJ#1.55 - 1.58 |
| 正面描述 | Four characters around hole |
|---|---|
| 正面文字 | |
| 正面铭文 | 貞 寳 觀 永 (Translation: Everlasting treasure of the Jōgan era (read clockwise)) |
| 背面描述 | Plain |
| 背面文字 | |
| 背面铭文 | |
| 边缘 | Smooth |
| 铸币厂 | |
| 铸造量 | ND (870-890) - DHJ# 1.55; large characters - ND (870-890) - DHJ# 1.56; 貞 and 寳 have short feet - ND (870-890) - DHJ# 1.57; wide 貞 with spread feet - ND (870-890) - DHJ# 1.58; small 貞 - |
| Numisquare 编号 | 3575722370 |
| 备注 |