Major domestic publishing and printing company 'Dainippon Archive Printing' has comprehensively revised its digital archive preservation standards for ancient coins and monetary materials, publishing a standard workflow fully compliant with the new JIS standard (JIS X 0171:2026). Eighty-five national museums and university libraries have announced immediate adoption, with unification of digital preservation quality for ancient coin materials to international standards expected to improve research, distribution, and authenticity assessment accuracy.
May 2026: Major Japanese Publishing and Printing Company Updates Digital Archive Preservation Standards for Ancient Coin Materials — National Museums and Universities Adopt New JIS-Compliant Preservation Workflows

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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.