Tokugawa monetary system
Tempo Tsuho
Tempo Tsuho are large oval cash coins introduced from 1835 with a nominal value of 100 mon.
天保通宝Tenpō Tsūhō
- Branch
- copper
- Years
- From 1835
- Form
- oval with square hole
- Valuation
- 100 mon nominal cash
Context
Historical and monetary setting
The issue belongs to late Tokugawa attempts to manage cash supply and nominal value through a high-denomination cast piece.
Identification
How to classify the object
Opening shape, legend calligraphy, reverse marks, dimensions, mass, and casting style separate official and later varieties.
Evidence boundary
What this page does not claim
One hundred mon is a nominal value, not a statement of proportional metal content.
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Related Edo references
Evidence
Sources and scope
These links support the claims on this page. Source authority does not imply permission to republish source images.
Kanei Tsuho copper, iron, brass four-mon, Tempo Tsuho, and mint-network chronology.
Open source