World Coin BookWorld coin encyclopedia

Representative Edo issue

Iron Kanei Tsuho One-Mon Cash

Iron one-mon Kanei Tsuho formed a distinct material branch within the long-running cash family.

鉄寛永通宝一文銭Iron Kan'ei Tsūhō

Iron Kanei Tsuho One-Mon obverse Iron Kanei Tsuho One-Mon reverse
As6673 · CC BY-SA 3.0 · via Wikimedia Commons · approved precise-object cleanup and deterministic derivative preparation. · Exact Kameido iron Kan’ei Tsūhō one-mon; the blank reverse is documentary, not a placeholder.
Years
From 1739
Metal branch
copper
Value or unit
1 mon
Catalog fineness
—

Context

Historical and monetary setting

The Currency Museum chronology places iron Kanei production from 1739.

Identification

How to classify the object

Corrosion can obscure calligraphy and casting evidence; metal confirmation and conservative handling matter.

Evidence boundary

What this page does not claim

Rust, patina, and surface loss must not be digitally reconstructed or cleaned away.

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Related Edo references

Early Kanei Tsuho One-Mon CashKanei Tsuho Four-Mon Brass Cash

Evidence

Sources and scope

These links support the claims on this page. Source authority does not imply permission to republish source images.

Edo Copper and Iron Coinage Bank of Japan Currency Museum

Kanei Tsuho copper, iron, brass four-mon, Tempo Tsuho, and mint-network chronology.

Open source