The nihonto market rewards patience and punishes haste. A first purchase made without preparation can mean overpaying for a blade in poor condition, accepting a dubious attribution, or, worst of all, buying something that turns out not to be a Japanese sword in any meaningful sense. For the wider lay of the land first, see our overview of buying a samurai sword in the UK; the checklist below is the detailed next step, covering the ground a new buyer needs before committing serious money.
Set a realistic budget first
Before looking at anything, decide what you are spending, and hold to it. The nihonto market stratifies sharply by price, and knowing your bracket determines which end of the market you are shopping.
- Under £1,000 / $1,200: This range covers Type 95 NCO swords (machine-made shōwatō), lower-grade guntō, and individual fittings. You can find honest, interesting pieces at this level, but genuine antique nihonto with any scholarly interest are rare.
- £1,500–£4,500 / $1,800–$5,500: Entry-level antique work. Late Shintō or Shinshintō katana, later gendaitō of the better wartime forges (including Mantetsu), pieces without papers but with credible attribution. Condition varies widely. This is where most first purchases happen.
- £5,000–£15,000 / $6,000–$18,000: NBTHK-papered kotō and quality Shintō work; signed pieces from known smiths; cleaner koshirae. This bracket demands papers.
- Above £15,000 / $18,000: Named smiths, significant historical pieces, museum-grade work. Do not enter this range without either deep personal knowledge or access to a trusted specialist.
Set your ceiling. Then subtract 10–15% to cover shipping, insurance, and any immediate conservation needs.
Where to buy
Specialist dealers are the safest starting point for a first purchase. A reputable dealer provides condition notes, provenance information, and stands behind what they sell. If a piece turns out to be mis-attributed, a dealer with a reputation to protect will work toward a resolution. The To-Ken Society of Great Britain and the Token Society of America both maintain dealer directories; the NBTHK’s member publications are another starting point.
That is how we work at Japanese Blades UK. Every piece is listed with condition notes, a clear account of what is and isn’t established about it, and principal measurements on request, backed by a 14-day returns policy. We also offer mei translation and polish and shinsa coordination if you want to take a piece further, and we are glad to give a second opinion before you commit, whether or not you buy from us. New collectors are exactly who we enjoy helping start out.
Private treaty (collector to collector) can produce excellent results, since pieces that never reach the open market often move through collector networks, but it requires knowing the right people and carries no institutional recourse if something goes wrong.
General antique markets and eBay: approach with extreme caution. The ratio of shōwatō, fakes, and decorative reproductions to genuine nihonto is very high at this end of the market.
Papers: the minimum standard
For any piece above entry level, papers from a recognised authentication body are the most reliable independent evidence of identity and quality. The two main bodies are:
NBTHK (Nihon Bijutsu Token Hozon Kyokai), the Japan Art Sword Preservation Society, is the most widely recognised authority. Their paper grades, from lowest to highest, are Hozon, Tokubetsu Hozon, Jūyō, and Tokubetsu Jūyō. For a serious first purchase, Hozon is a reasonable minimum standard. It confirms the piece is a genuine nihonto and provides an attribution. Papers above Hozon indicate a piece of recognised significance and are priced accordingly.
NTHK (Nihon Token Hozon Kai) is a separate, also respected body. Their grades (Kanteisho, Yushu, Tokushu) are viewed somewhat differently by different collectors; NBTHK papers carry somewhat broader market acceptance.
Papers do not guarantee a blade is in excellent condition. They authenticate identity and attribution, not polish quality or structural soundness. A papered blade in poor polish is still a papered blade; it may need significant investment to realise its value. Ask for the paper date as well as the grade, since older papers may predate condition changes.
For pieces without papers, particularly gendaitō and later work, a credible attributed mei, documented provenance, or a dealer’s written description with a returns policy can substitute at lower price points. At £5,000 and above, the absence of any third-party authentication should prompt a direct question.
Provenance: the questions to ask
Provenance in nihonto is a chain, not a single fact. Before purchasing, ask:
- Where did the piece come from? A collection dispersal, a direct Japanese import, an estate? The answer won’t always be complete, but a seller who can’t tell you anything about a piece’s history is offering you less than their description implies.
- Has it been polished or restored? When, and by whom? Good modern polish can make a mediocre blade look excellent, and a badly done polish can damage surface activities permanently. Ask for the polisher’s name if known.
- Does the mei match the school attribution? A blade attributed to a named smith should have a mei that a translator can confirm. If the mei is described but no translation is offered, ask for one. We offer translation services if you need an independent read.
- Are there any structural issues? Hagire (cracks in the hamon), a bent or damaged tip, pitting, rust: these are material to value and condition. Ask directly.
- What are the return terms? A confident seller stands behind their description.
Photographs to request
Photographs in nihonto listings vary enormously in quality. At minimum, before committing to a purchase, you should have:
- Full blade in polish, both sides, straight-on
- Close-up of the hamon along the length of the blade
- Nakago (tang), both sides, with any mei clearly visible
- Boshi (tip area)
- Any papers, open and legible
If the listing photographs are taken at an angle or under lighting that obscures the hamon and jihada, ask for replacements. This is a normal request and a seller who declines should give pause.
Red flags
- An unusually low price for a claimed named-smith attribution
- Papers described as “possibly” or “probably” NBTHK: papers either exist or they don’t
- Reluctance to provide nakago photographs
- A mei that looks freshly cut on an old blade
- “Samurai sword” used as the whole description. The term itself is perfectly normal shorthand for a Japanese sword, but a complete listing should also give the blade’s actual type (katana, wakizashi, tantō, or guntō) and its period
- A blade described as “very rare” without specifics: in nihonto, rarity has precise meaning
The nihonto market has excellent pieces at every level. The buyers who do well over time are those who buy carefully and buy what they can afford to keep, accumulating knowledge alongside pieces. If you have questions about a specific piece before committing, get in touch. A second opinion costs nothing.
Related guides: Kantei: attributing a Japanese sword · How to read nihontō papers
