Japan's five leading newspapers — Asahi, Yomiuri, Mainichi, Nikkei, and Sankei — simultaneously launched old coin serialization projects in May 2026, each approaching the topic from a distinct angle: history, investment, authentication, cultural heritage, and international markets.
May 2026: Five Major Japanese Newspapers Launch Simultaneous Old Coin Serialization Projects — Asahi, Yomiuri, Mainichi, Nikkei, and Sankei Each Offer Unique Editorial Perspectives

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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.