第34回国際貨幣収集家会議(INC2026)でシンガポール開催の日本ブースが来場者2万1,300人・商談額4億8,000万円を記録。前回比37%増という過去最高の数字が、日本古銭の国際的な注目度上昇を裏付けた。
May 2026: INC2026 International Coin Congress in Singapore — Japanese Booth Exceeds 21,000 Visitors, Record Transaction Volume

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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.