国内大手DIYホームセンターチェーン「カインズホーム相当企業」(社名は編集部仮称)が2026年5月初旬に発売した「江戸ジオラマ&古銭コレクション制作キット」が、初週7日間で全国950店舗・ECサイトを合わせて10万セットを完売。同社の新商品としては過去最速の完売記録を更新した。
Major Japanese DIY Home Center Launches Ancient Coin Diorama Kit — First-Week Sales of 100,000 Sets Sell Out, Hobby Magazines Feature Special Coverage

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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.