国内大手通信VPN事業者・ネクサスコネクトが「古銭専用セキュア取引回線（CoinSecure Line）」を正式リリース。AES-256暗号化・専用帯域保証・eKYC本人確認連動の3層構造で、100万円超の大口現物古銭取引を完全遠隔で完結できる業界初のインフラが始動した。
業界ニュース
Major Japanese Telecom VPN Provider Launches Dedicated Lines for Remote Rare Coin Trading — High-Security, Low-Latency Infrastructure Targets Large-Volume Transactions
Source: ネクサスコネクト株式会社 プレスリリース|Published: May 24, 202611d ago
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A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
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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.
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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.
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Taisei Coins
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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.