Kyodai Originals
    Kyodai OriginalsKyodai Originals
    Cor Slok · Owner

    Got a question? Open for a call, feel free to ring anytime.

    CallWhatsAppEmail
    Safe Pay · Bank Transfer Only
    +31 6 39 58 18 67
    刀
    Authentic Japanese Antiques

    Discover RealUnique Pieces

    Museum-grade Japanese swords and armor. Hand-picked, NBTHK certified, delivered with lifetime authentication.

    View the CollectionOur Story
    Secure checkout
    Bank Transfer · Personal Service
    Jūyō Tōken Wakizashi by Shume no Kami Ippei Yasuyo with Tokugawa Aoi Crest, detailed view of handle and blade
    Juyo Wakizashi
    LEGENDARY CRAFTSMANSHIP

    Jūyō Tōken Wakizashi by Shume no Kami Ippei Yasuyo with Tokugawa Aoi Crest

    The Only Jūyō Wakizashi by Shume no Kami Ippei Yasuyo Known Today

    45500Investment Grade Piece
    Discover the Story
    Worldwide Insured Shipping
    Secure Payment
    Certified Authenticity
    NTHK · NBSK · NBTHK
    Accepted Payments
    Bank Transfer · Personal Service
    Available Pieces

    Explore the rarest items

    27 pieces currently available. Each acquisition includes a private Amsterdam viewing, hard-paper certification, and lifetime authentication.

    Explore all items
    Why Kyodai

    Trust built on three pillars

    Curation

    Hand selected pieces

    Each object is sourced directly from Japanese auctions, dealers, and private collections by curators with over two decades of experience.

    Authentication

    NBTHK papers, lifetime guarantee

    Every piece is independently verified. We stand behind authenticity for life, with full documentation and provenance.

    Delivery

    Insured, discreet, worldwide

    Museum grade packing, full insurance, customs handled. Private Amsterdam viewing available on request.

    EXCLUSIVE MASTERPIECE

    Featured Highlight

    Nidai Muramasa Sayagaki katana with dark scabbard resting on a stand, paper certificates behind it
    Muramasa

    Nidai Muramasa Sayagaki

    € 48.500,00Discover
    Accepted Payments
    Bank Transfer · Personal Service
    CONTACT US

    Speak with us directly

    Reach out by WhatsApp, email or phone. We answer personally, usually within a few hours.

    WhatsApp
    +31 6 39 58 18 67
    Email
    cslok@ziggo.nl
    Call
    +31 6 39 58 18 67

    C.W. Slok, Kyodai Originals · KvK 51964147

    HISTORY AND TRADITIONS

    Explore our blogs

    All Posts
    Heianjō Nagayoshi. The Kyoto Master Who Shaped the Origins of the Muramasa Tradition, NihontōNihontō
    June 29 · 202610 min read

    Heianjō Nagayoshi. The Kyoto Master Who Shaped the Origins of the Muramasa Tradition

    An NBTHK Jūyō Tōken tantō by Heianjō Nagayoshi, one of Muromachi Kyoto's foremost swordsmiths and, by long standing tradition, the teacher of the legendary Muramasa.

    CS
    Cor Slok
    Rai Kunizane Katana. A Rare Late Kamakura Masterpiece with Edo Period Koshirae, NihontōNihontō
    June 29 · 202611 min read

    Rai Kunizane Katana. A Rare Late Kamakura Masterpiece with Edo Period Koshirae

    An exceptional NBTHK Tokubetsu Hozon katana attributed to Rai Kunizane of the Yamashiro Rai School. A late Kamakura masterpiece preserved with its Edo period koshirae.

    CS
    Cor Slok
    Suishinshi Masahide Wakizashi (1816). A Rare Masterpiece with Edo Period Tameshigiri, NihontōNihontō
    June 29 · 202612 min read

    Suishinshi Masahide Wakizashi (1816). A Rare Masterpiece with Edo Period Tameshigiri

    A signed and dated 1816 wakizashi by Suikanshi Sadahide, the future Nidai Suishinshi Masahide, bearing an authentic Yamada Asaemon tameshigiri inscription and NBTHK Tokubetsu Hozon certification.

    CS
    Cor Slok
    Explore More