日本古銭デジタルアーカイブ協議会が主導するクラウドファンディング「古銭デジタルアーカイブ整備プロジェクト」が2026年5月22日に終了し、総支援額3億2,000万円・支援者12,847人という国内古銭分野の最高記録を達成した。集まった資金は高精細3D撮影設備・全文検索システム・多言語化の三本柱に投じられ、2027年春の一般公開を目指す。
May 2026: Japanese Old Coin Digital Archive Crowdfunding Raises ¥320 Million — Sets National Record for Both Supporter Count and Total Amount in Numismatic Category

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Dealers Handling This Category
A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
Ginza Coins
Ginza, Chuo-ku, Tokyo
One of Japan's most established numismatic dealers. The scale and variety of their regular auctions is among the largest in the country. Their catalogs are considered a benchmark for market pricing.
Japan Coin Auction (JCA)
Tokyo
Holds regular auctions with reliable hammer price data, making it a useful resource for tracking market values. Caters to a wide range of collectors from beginners to advanced buyers.
Taisei Coins
Tokyo
A dealer with an international network. Offers advanced services such as consignment to overseas auctions and NGC/PCGS grading submission. Recommended for high-value or internationally recognized coins.