Japan 1 Mon "Jōgan Eihō" - Seiwa, 870 – 890
Information
Country
Japan
Currency
Mon
(683 – 1953)
Coin type
Standard circulation coin
Denomination
1 Mon "Jōgan Eihō" - Seiwa
Year
870 – 890
Ruler
Seiwa
(858–876)
Composition
Copper
Shape
Round with a square hole
Technique
Cast
Weight (g)
2.8
Diameter (mm)
19.5
Demonetized
25 November 0987
Description
1 Mon "Jōgan Eihō" - Seiwa from Japan. Issued from 870 to 890. Struck in Copper. Measures 19.5 mm and weighs 2.8 g.
- Obverse
- Four characters around hole (Everlasting treasure of the Jōgan era (read clockwise))
- Reverse
- Plain
- Edge
- Smooth
Mintage & Variants
| Date | Mintage | Comment | Frequency | |
|---|---|---|---|---|
| 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 |
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