国内新興フードテック企業「バイオクラフト」が、江戸時代の蔵元・味噌蔵で採取した古来発酵菌を現代バイオ技術で培養・製品化。古銭コレクションをきっかけに菌株採取地を特定した異色のコラボが話題を呼び、サプリメント・調味料・スキンケアの3ライン合計で月間10万本を突破した。
Japan's Leading FoodTech Startup Launches Old Coin Culture × Traditional Food × Biotech Collaboration — Edo-Era Miso and Sake Lees-Derived Fermentation Bio-Products Reach 100,000 Monthly Units

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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.