国内大手AI研究所・デジタル文化財研究機構(DCRI)が日本古銭の画像自動分類モデル「CoinVision v3.0」を発表。1万2,000種超の銭種を平均99.2%の精度で識別。専門家の鑑定工数を最大80%削減できるとされ、古銭業界の鑑定基準と市場透明性に革命的変化をもたらすと注目されている。
Major Japanese AI Research Institute Achieves 99% Accuracy in Cultural Heritage Coin Auto-Classification Model — Over 10,000 Coin Types Identified with 95%+ Precision, Industry Appraisal Standards Set for Overhaul

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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.