Tokugawa monetary system

Edo Silver Coinage

Tokugawa silver includes principally weight-valued Chogin and Mameitagin plus later declared-value silver forms.

江戸銀貨Edo ginka

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Context

Historical and monetary setting

Silver standards were repeatedly recoined, and later denominated silver changed the boundary between weighed metal and counted value.

Identification

Separate shape, weight practice, marks, era character, fineness context, and whether the issue carried a declared denomination.

Evidence boundary

Monme is a weight unit, not a coin denomination interchangeable with one fixed modern value.

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Evidence

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

Early Edo Silver Recoinages Bank of Japan Currency Museum

Keicho, Genroku, and Hoei Chogin and Mameitagin fineness sequence.

Open source

Later Edo Silver and Ginza Offices Bank of Japan Currency Museum

Shotoku through Ansei silver fineness, denominated silver, and Ginza locations.

Open source