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Reverse
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1 Mon "Kan'eitsūhō" (new type; copper alloy; blank reverse)
🇯🇵 Japan · 1 Mon "Kan'eitsūhō" (new type; copper alloy; blank reverse) · 1333–1870
| Weight | 3.28 g |
| Diameter | 25 mm |
| Composition | Copper |
| Melt value | — |
| Reference | DHJ# 4.103-4.108, 4.108a, etc., C# 1.1 |
| Collector's Key World ID | CKW-JPN-25 |
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Varieties & References
No additional varieties recorded.
External references
Frequently Asked QuestionsFAQ
What is a 1700 Japan 1 Mon "Kan'eitsūhō" (new type; copper alloy; blank reverse) made of?
Copper, weighing 3.28 g.
What is the melt value of a 1700 Japan 1 Mon "Kan'eitsūhō" (new type; copper alloy; blank reverse)?
Its melt value is its metal content multiplied by the current spot price. See our melt calculator on the metals pages for a live figure.
Is the 1700 Japan 1 Mon "Kan'eitsūhō" (new type; copper alloy; blank reverse) a key date?
It's a more common issue overall, though scarcer varieties may carry a premium — see the varieties list.
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