Major domestic power tool manufacturer Yatazaki Seiko (YSK) has launched the craftsman-oriented "Edo Kaji Series" that fuses Edo-period blacksmith techniques with modern power tools. Supervised by four long-established smithies, the tool line is designed to meet the delicate metalworking needs of restoration professionals working with ancient coins, swords, and metalwork.
Major Japanese Power Tool Manufacturer Releases Craftsman-Line Tools Reviving Edo-Era Blacksmith Techniques — Supervised by 4 Long-Established Smithies, New Standard for Restoration Artisans

ITTENDO tracks auction records and market charts so you always know the current value of Japanese antique coins. Add coins to your Vault to stay on top of price changes.
Free Appraisal
Get your old coins appraised — free of charge
Edo-era silver, koban, commemorative medals, foreign coins and more — just upload a photo. Our specialists reply with an estimated valuation by email within 2–3 business days.
Request a free appraisalDealers
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.