静岡県の旧家蔵から慶長〜元和年間(1596〜1624年)試鋳とみられる銀貨3枚が発見。現物が組で出た前例がなく、専門家から「国宝級」と評価される歴史的発見として鑑定・調査が進んでいる。
Potential National Treasure Discovery: Edo-Period Trial Silver Coins Surface from Old Storehouse — Three-Piece Set May Prove Keichō–Genna Minting Transition

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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.