Japanese mon coin
Also known as: Kanei tsuho
A cast copper coin with a central square hole, the standard low-denomination currency of Edo period Japan.
Historical context
Cast at many locations over more than two centuries, producing extensive variety.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Variety classification requires a specialist Japanese reference
- Weight and diameter ranges need transcription