Kyodai Originals
    Kyodai OriginalsKyodai Originals
    Cor Slok · Owner

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    Authentic Japanese Antiques

    Fine Japanese Swords& Samurai Art

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

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    Naotane's Final Known Daishō katana set, two samurai swords displayed with their scabbards and handles
    NBTHK Tokubetsu Hozon
    Edo 1853

    Taikei Naotane’s Final Masterpice Known Daishō NBTHK Tokubetsu Hozon , NBTHK Hozon Koshirae 1853

    Two Blades. One Master. One Final Legacy Naotane

    € 44.500,00Investment Grade Piece
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    Available Pieces

    Explore the rarest items

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

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    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

    Second generation Muramasa (Nidai Muramasa 1532–1555) Sayagaki written by Tanobe Sensei NBTHK Hozon certification, Tokubetsu Kichō papers

    € 48.500,00Discover
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    CONTACT US

    Speak with us directly

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

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    C.W. Slok, Kyodai Originals · KvK 51964147

    HISTORY AND TRADITIONS

    Explore our blogs

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    Before You Spend Thousands on a Japanese Sword, Collecting GuideCollecting Guide
    August 17 · 202613 min read

    Before You Spend Thousands on a Japanese Sword

    Read, study, compare and ask questions before you buy. A practical guide for collectors spending serious money on an antique Japanese sword.

    CS
    Cor Slok
    Taikei Naotane Daishō, An Extraordinary 1853 Masterpiece, NihontōNihontō
    August 15 · 202612 min read

    Taikei Naotane Daishō, An Extraordinary 1853 Masterpiece

    Discover an extraordinary Taikei Naotane Daishō forged in Kaei 6 (1853) at the age of 76. Both katana and wakizashi hold NBTHK Tokubetsu Hozon certification.

    CS
    Cor Slok
    A Kamakura Masterpiece. An Exceptionally Important Nagamaki Naoshi Attributed to the Aoe School (Kareki 2, 1327), NihontōNihontō
    July 6 · 20269 min read

    A Kamakura Masterpiece. An Exceptionally Important Nagamaki Naoshi Attributed to the Aoe School (Kareki 2, 1327)

    An NBTHK Tokubetsu Hozon Nagamaki Naoshi attributed to the Bitchū Aoe School and dated Kareki 2 (1327), a rare survivor from the golden age of Japanese swordsmithing.

    CS
    Cor Slok
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