NA 2026.004
Last revised
Nihontō · Wakizashi · Shirasaya
Mumei Wakizashi Study I
無銘脇差 · 白鞘
Period unrecorded
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.
AttributionMumei · 無銘No appraisal paper; both nakago faces photographed
- Nagasa
- 44.0 cm
- Sori
- 0.5 cm
- Habaki
- Nijū-habaki · two piece
Object record
Overview
Object record
- Item
- Wakizashi (脇指) in plain wooden shirasaya (白鞘)
- Attribution
- Mumei / unsigned · photographic record
無銘 - Nagasa
- 44.0 cm
- Sori
- 0.5 cm
- Width
- Motohaba 2.7 cm · sakihaba 1.9 cm
- Kasane
- Motogasane 0.6 cm · sakigasane 0.5 cm
- Mekugi-ana
- One · both nakago faces photographed
- Period
- Unrecorded · no appraisal paper supplied
Condition record
- Photographs
- Sixteen archival photographs · no video
- Documents
- No registration card, NBTHK/NTHK paper, or other certificate shown
Photographic record
Plates · 16
Available views arranged as a comparative object study; descriptions distinguish observation from documentary attribution.
Click underlined specialist terms for concise notes and construction diagrams.
I
Shirasaya & Object
白鞘・全体
2 plates
Plate I.1 · 白鞘・全体
Drawn presentation
Blade drawn from its plain wooden , with the storage mounting aligned beside it.
Plate I.2 · 白鞘・全体
Closed
Closed plain wooden , documenting the complete storage mounting.
II
Sugata & Nakago
姿・茎
4 plates
Plate II.1 · 姿・茎
Full ·
Full , . The compact 44.0 cm blade has shallow 0.5 cm and moderate taper; the broad, undulating is visible in places despite flash reflection.
Plate II.2 · 姿・茎
Full ·
The full-length view records the same shallow curvature and the continuing toward the .
Plate II.3 · 姿・茎
·
, . One , a compact nearly square , and faint diagonal are visible; no is present.
Plate II.4 · 姿・茎
·
, . The single and brown patina are clearly recorded; no is present.
III
Habaki & Profile
鎺・断面観察
4 plates
Plate III.1 · 鎺・断面観察
transition
Oblique view across the and -to-blade transition.
Plate III.2 · 鎺・断面観察
Blade profile
Edge-on view along the blade toward the ; recorded visually, not used to infer measurements.
Plate III.3 · 鎺・断面観察
·
One face of a yellow-metal nijū- (two-piece ). The stepped overlap between the upper and lower jackets is clearly visible; wear and localized discoloration remain on the lower piece.
Plate III.4 · 鎺・断面観察
·
Opposing face of the nijū-, confirming the continuous stepped joint between its two nested pieces. Exact alloy is not assigned from color alone.
IV
Surface Condition
地鉄・鋒
6 plates
Plate IV.1 · 地鉄・鋒
Blade surface ·
Blade-surface close-up, . Surface scratching and flash glare are visible on the blade; darkening or oxidation is visible on the . The photographs do not diagnose the defects.
Plate IV.2 · 地鉄・鋒
Blade surface ·
Blade-surface close-up, . Scratches, reflections, and current polish condition remain visible.
Plate IV.3 · 地鉄・鋒
·
, . A defined and the continuation of the broad, irregular into the area are visible, although glare prevents a reliable reading of hataraki or kaeri.
Plate IV.4 · 地鉄・鋒
Condition detail ·
Additional condition record. No restoration or defect diagnosis is inferred from the photograph alone.
Plate IV.5 · 地鉄・鋒
Condition detail ·
Additional condition record. Scratches and lighting artifacts are visible, but no specific ware, fukure, hagire, or other flaw is diagnosed from the photograph alone.
Plate IV.6 · 地鉄・鋒
·
, . No sharpening, flaw classification, or restoration recommendation is made from this image.
Photographs courtesy of GN-1-Japan, used with permission.
Revision history
- Public metadata and terminology reviewed.
- Public catalogue record established.