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Representative Edo issue

Manen Nibukin: Late Tokugawa Two-Bu Gold

The Manen Nibukin belongs to the small rectangular gold issues of the final Tokugawa recoinage environment.

万延二分金Man'en Nibukin

Manen Nibukin obverse Manen Nibukin reverse
As6673 · CC BY-SA 3.0 · via Wikimedia Commons · approved precise-object cleanup and deterministic derivative preparation. · Exact documented Man’en Nibukin shared by the Edo and Bakumatsu transition studies.
Years
From 1860
Metal branch
gold
Value or unit
2 bu
Catalog fineness
—

Context

Historical and monetary setting

Its 1860 context overlaps the terminal crisis of Tokugawa metallic standards.

Identification

How to classify the object

Attribute by issue-specific punches, calligraphy, dimensions, mass, and alloy evidence.

Evidence boundary

What this page does not claim

Foreign-trade causation and Meiji reform are covered by the Bakumatsu–Meiji catalog.

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Related Edo references

Keicho Ichibukin: One-Bu Rectangular Gold

Evidence

Sources and scope

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

Later Edo Gold Recoinages Bank of Japan Currency Museum

Genbun through Manen Koban and Tempo Goryoban display-table masses and fineness values.

Open source