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4 Mon "Kan'eitsūhō" (21 waves)

🇯🇵 Japan · 4 Mon "Kan'eitsūhō" (21 waves) · 1333–1870
Regular
Weight4.96 g
Diameter27.73 mm
CompositionCopper
ReferenceDHJ# 4.250, 4.251, C# 4.1, JC# 07-4-3
Collector's Key World IDCKW-JPN-38

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Varieties & References

No additional varieties recorded.

External references

Frequently Asked QuestionsFAQ
What is a 1768 Japan 4 Mon "Kan'eitsūhō" (21 waves) made of?
Copper, weighing 4.96 g.
What is the melt value of a 1768 Japan 4 Mon "Kan'eitsūhō" (21 waves)?
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 1768 Japan 4 Mon "Kan'eitsūhō" (21 waves) a key date?
It's a more common issue overall, though scarcer varieties may carry a premium — see the varieties list.