三菱UFJ信託銀行が2026年5月より、日本古銭コレクションを対象とした事業承継・遺贈プランの提供を開始した。銀行系信託として初めて古銭を「動産信託財産」として正式に受け入れ、専門鑑定機関との提携で時価評価・保管・売却代行を一括サポート。富裕層コレクターの相続問題を制度的に解決する動きとして注目されている。
May 2026: MUFG Trust Bank Launches Business Succession and Bequest Plans for Japanese Old Coins — Major Bank Trust Division Formally Manages Coin Collections as Inheritance Assets

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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.