{
  "schemaVersion": 1,
  "canonicalUrl": "https://zufu.whiskey.works/objects/mumei-wakizashi-study-01/",
  "recordUrl": "https://zufu.whiskey.works/objects/mumei-wakizashi-study-01/record.json",
  "accession": "NA 2026.004",
  "title": "Mumei Wakizashi Study I",
  "japaneseTitle": "無銘脇差 · 白鞘",
  "classification": {
    "category": "nihonto",
    "form": "wakizashi",
    "presentation": [
      "shirasaya"
    ]
  },
  "period": "Period unrecorded",
  "summary": "A compact 44.0 cm mumei wakizashi in shirasaya, with a broad undulating hamon intermittently visible, a one-hole nakago, and a clearly constructed nijū-habaki.",
  "attribution": {
    "label": "Mumei",
    "japanese": "無銘",
    "qualifier": "No appraisal paper; both nakago faces photographed"
  },
  "highlights": [
    {
      "label": "Nagasa",
      "value": "44.0 cm"
    },
    {
      "label": "Sori",
      "value": "0.5 cm"
    },
    {
      "label": "Habaki",
      "value": "Nijū-habaki · two piece"
    }
  ],
  "revisedOn": "2026-07-23",
  "revisions": [
    {
      "date": "2026-07-22",
      "note": "Public catalogue record established."
    },
    {
      "date": "2026-07-23",
      "note": "Public metadata and terminology reviewed."
    }
  ],
  "hero": {
    "image": "https://zufu.whiskey.works/media/na-2026-004/01.jpg",
    "alt": "Mumei Wakizashi Study I wakizashi drawn from its plain wooden shirasaya on purple cloth"
  },
  "sections": [
    {
      "title": "Object record",
      "facts": [
        {
          "label": "Item",
          "value": "Wakizashi (脇指) in plain wooden shirasaya (白鞘)"
        },
        {
          "label": "Attribution",
          "value": "Mumei / unsigned · photographic record\n無銘"
        },
        {
          "label": "Nagasa",
          "value": "44.0 cm"
        },
        {
          "label": "Sori",
          "value": "0.5 cm"
        },
        {
          "label": "Width",
          "value": "Motohaba 2.7 cm · sakihaba 1.9 cm"
        },
        {
          "label": "Kasane",
          "value": "Motogasane 0.6 cm · sakigasane 0.5 cm"
        },
        {
          "label": "Mekugi-ana",
          "value": "One · both nakago faces photographed"
        },
        {
          "label": "Period",
          "value": "Unrecorded · no appraisal paper supplied"
        }
      ],
      "notes": [
        {
          "lead": "Attribution boundary.",
          "body": "Both nakago faces photographed; no legible inscription and no appraisal paper supplied."
        }
      ]
    },
    {
      "title": "Condition record",
      "facts": [
        {
          "label": "Photographs",
          "value": "Sixteen archival photographs · no video"
        },
        {
          "label": "Documents",
          "value": "No registration card, NBTHK/NTHK paper, or other certificate shown"
        }
      ],
      "notes": [
        {
          "lead": "Visible record.",
          "body": "Surface scratching and flash glare are visible on the blade; darkening or oxidation is visible on the nakago. The photographs do not diagnose the defects."
        }
      ]
    }
  ],
  "plates": [
    {
      "number": "I.1",
      "group": "I",
      "groupTitle": "Shirasaya & Object",
      "title": "Drawn presentation",
      "japanese": "白鞘・全体",
      "caption": "Blade drawn from its plain wooden shirasaya, with the storage mounting aligned beside it.",
      "alt": "Mumei Wakizashi Study I: Drawn presentation",
      "image": "https://zufu.whiskey.works/media/na-2026-004/01.jpg",
      "redacted": false
    },
    {
      "number": "I.2",
      "group": "I",
      "groupTitle": "Shirasaya & Object",
      "title": "Closed shirasaya",
      "japanese": "白鞘・全体",
      "caption": "Closed plain wooden shirasaya, documenting the complete storage mounting.",
      "alt": "Mumei Wakizashi Study I: Closed shirasaya",
      "image": "https://zufu.whiskey.works/media/na-2026-004/02.jpg",
      "redacted": false
    },
    {
      "number": "II.1",
      "group": "II",
      "groupTitle": "Sugata & Nakago",
      "title": "Full sugata · omote",
      "japanese": "姿・茎",
      "caption": "Full sugata, omote. The compact 44.0 cm blade has shallow 0.5 cm sori and moderate taper; the broad, undulating hamon is visible in places despite flash reflection.",
      "alt": "Mumei Wakizashi Study I: Full sugata · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/03.jpg",
      "redacted": false
    },
    {
      "number": "II.2",
      "group": "II",
      "groupTitle": "Sugata & Nakago",
      "title": "Full sugata · ura",
      "japanese": "姿・茎",
      "caption": "The ura full-length view records the same shallow curvature and the hamon continuing toward the kissaki.",
      "alt": "Mumei Wakizashi Study I: Full sugata · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/04.jpg",
      "redacted": false
    },
    {
      "number": "II.3",
      "group": "II",
      "groupTitle": "Sugata & Nakago",
      "title": "Nakago · omote",
      "japanese": "姿・茎",
      "caption": "Nakago, omote. One mekugi-ana, a compact nearly square nakago-jiri, and faint diagonal yasurime are visible; no mei is present.",
      "alt": "Mumei Wakizashi Study I: Nakago · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/05.jpg",
      "redacted": false
    },
    {
      "number": "II.4",
      "group": "II",
      "groupTitle": "Sugata & Nakago",
      "title": "Nakago · ura",
      "japanese": "姿・茎",
      "caption": "Nakago, ura. The single mekugi-ana and brown patina are clearly recorded; no mei is present.",
      "alt": "Mumei Wakizashi Study I: Nakago · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/06.jpg",
      "redacted": false
    },
    {
      "number": "III.1",
      "group": "III",
      "groupTitle": "Habaki & Profile",
      "title": "Machi transition",
      "japanese": "鎺・断面観察",
      "caption": "Oblique view across the machi and nakago-to-blade transition.",
      "alt": "Mumei Wakizashi Study I: Machi transition",
      "image": "https://zufu.whiskey.works/media/na-2026-004/07.jpg",
      "redacted": false
    },
    {
      "number": "III.2",
      "group": "III",
      "groupTitle": "Habaki & Profile",
      "title": "Blade profile",
      "japanese": "鎺・断面観察",
      "caption": "Edge-on view along the blade toward the kissaki; recorded visually, not used to infer measurements.",
      "alt": "Mumei Wakizashi Study I: Blade profile",
      "image": "https://zufu.whiskey.works/media/na-2026-004/08.jpg",
      "redacted": false
    },
    {
      "number": "III.3",
      "group": "III",
      "groupTitle": "Habaki & Profile",
      "title": "Habaki · omote",
      "japanese": "鎺・断面観察",
      "caption": "One face of a yellow-metal nijū-habaki (two-piece habaki). The stepped overlap between the upper and lower jackets is clearly visible; wear and localized discoloration remain on the lower piece.",
      "alt": "Mumei Wakizashi Study I: Habaki · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/09.jpg",
      "redacted": false
    },
    {
      "number": "III.4",
      "group": "III",
      "groupTitle": "Habaki & Profile",
      "title": "Habaki · ura",
      "japanese": "鎺・断面観察",
      "caption": "Opposing face of the nijū-habaki, confirming the continuous stepped joint between its two nested pieces. Exact alloy is not assigned from color alone.",
      "alt": "Mumei Wakizashi Study I: Habaki · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/10.jpg",
      "redacted": false
    },
    {
      "number": "IV.1",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Blade surface · ura",
      "japanese": "地鉄・鋒",
      "caption": "Blade-surface close-up, ura. Surface scratching and flash glare are visible on the blade; darkening or oxidation is visible on the nakago. The photographs do not diagnose the defects.",
      "alt": "Mumei Wakizashi Study I: Blade surface · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/11.jpg",
      "redacted": false
    },
    {
      "number": "IV.2",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Blade surface · ura",
      "japanese": "地鉄・鋒",
      "caption": "Blade-surface close-up, ura. Scratches, reflections, and current polish condition remain visible.",
      "alt": "Mumei Wakizashi Study I: Blade surface · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/12.jpg",
      "redacted": false
    },
    {
      "number": "IV.3",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Kissaki · ura",
      "japanese": "地鉄・鋒",
      "caption": "Kissaki, ura. A defined yokote and the continuation of the broad, irregular hamon into the bōshi area are visible, although glare prevents a reliable reading of hataraki or kaeri.",
      "alt": "Mumei Wakizashi Study I: Kissaki · ura",
      "image": "https://zufu.whiskey.works/media/na-2026-004/13.jpg",
      "redacted": false
    },
    {
      "number": "IV.4",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Condition detail · omote",
      "japanese": "地鉄・鋒",
      "caption": "Additional omote condition record. No restoration or defect diagnosis is inferred from the photograph alone.",
      "alt": "Mumei Wakizashi Study I: Condition detail · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/14.jpg",
      "redacted": false
    },
    {
      "number": "IV.5",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Condition detail · omote",
      "japanese": "地鉄・鋒",
      "caption": "Additional omote condition record. Scratches and lighting artifacts are visible, but no specific ware, fukure, hagire, or other flaw is diagnosed from the photograph alone.",
      "alt": "Mumei Wakizashi Study I: Condition detail · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/15.jpg",
      "redacted": false
    },
    {
      "number": "IV.6",
      "group": "IV",
      "groupTitle": "Surface Condition",
      "title": "Kissaki · omote",
      "japanese": "地鉄・鋒",
      "caption": "Kissaki, omote. No sharpening, flaw classification, or restoration recommendation is made from this image.",
      "alt": "Mumei Wakizashi Study I: Kissaki · omote",
      "image": "https://zufu.whiskey.works/media/na-2026-004/16.jpg",
      "redacted": false
    }
  ],
  "rights": {
    "catalogue": "© 2026 whiskey.works",
    "photographs": "Courtesy of GN-1-Japan, used with permission. No downstream reproduction permission is granted."
  }
}