国内大手AIスタートアップのコグノス・ジャパンが古銭研究特化型機械翻訳基盤「CoinLingua」を発表。江戸古文書・漢籍・欧米学術論文など20言語に対応し、専門用語の精度を一般翻訳エンジン比40%向上。国内外の古銭研究者が長年抱えてきた言語障壁を技術で解消する試みが始動した。
Major Japanese AI Startup Announces Machine Translation Infrastructure for Ancient Coin Research Literature — 20-Language Coverage from Edo-Era Documents to Foreign Academic Texts, Drastically Reducing Researcher Working Hours

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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.