| Emittent | Japan |
|---|---|
| Jahr | 870-890 |
| Typ | Standard circulation coin |
| Nennwert | 1 Mon |
| Währung | Mon (683-1953) |
| Material | Copper |
| Gewicht | 2.8 g |
| Durchmesser | 19.5 mm |
| Dicke | |
| Form | Round with a square hole |
| Prägetechnik | Cast |
| Ausrichtung | |
| Stempelschneider | Fujiwara Ujimichi |
| Im Umlauf bis | 25 November 0987 |
| Referenz(en) | DHJ#1.55 - 1.58 |
| Aversbeschreibung | Four characters around hole |
|---|---|
| Aversschrift | |
| Averslegende | 貞 寳 觀 永 (Translation: Everlasting treasure of the Jōgan era (read clockwise)) |
| Reversbeschreibung | Plain |
| Reversschrift | |
| Reverslegende | |
| Rand | Smooth |
| Prägestätte | |
| Auflage | 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-ID | 3575722370 |
| Anmerkungen |