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ITTENDO
Japan's Largest Japanese Old Coin Media
ITTENDO
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ITTENDO
Coin Market Terminal
Japan's Largest Japanese Old Coin Media
Services
English
Log In
Home
News
Coin Stories
Coinpedia
Auctions
Price Guide
Editorial
Guide
Events
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About
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FAQ
Frequently Asked Questions
Common questions and answers about ITTENDO
All
Service
Data
Features
Appraisal
Authentication
Storage
Market
Beginners
History
Other
Service
What is ITTENDO?
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Service
Is the service free to use?
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Service
Can I use ITTENDO without registering?
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Data
Where does ITTENDO's auction data come from?
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Data
How reliable are the price guides?
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Features
What is Watchlist?
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Features
What is Vault?
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Appraisal
How do I request an appraisal for sale or consignment?
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Appraisal
Is the appraisal service free?
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Appraisal
What is a typical buyback price?
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Authentication
How can I spot counterfeit or altered coins?
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Authentication
What is a coin grade?
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Authentication
Can I request authentication through ITTENDO?
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Storage
How should I store antique coins?
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Storage
My copper coin has turned green. Is that a problem?
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Storage
Can I clean my coins?
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Market
What determines the value of an antique coin?
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Market
How is the antique coin market trending lately?
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Market
When is the best time to buy or sell?
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Beginners
How do I get started collecting Japanese antique coins?
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Beginners
There are so many types — where should I start learning?
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Beginners
Can antique coins be a genuine investment?
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History
What was Japan's first official currency?
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History
Why was Kan'ei Tsūhō the most widely circulated coin in Japan?
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History
What was the Edo-period three-currency system?
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Other
How do I get my dealership listed?
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