Are there fakes in the market for modern fine art Samurai swords?

Most collectors assume that fakes are a problem confined to the antique sword market. They are not. Counterfeit contemporary Japanese swords — forged blades bearing the names of living, licensed swordsmiths — exist, and they are being sold on major international auction platforms right now. This article documents a real case, shows you what to look for, and explains why the problem is more organised than most buyers realise.

A Real Case: A Fake Bearing a Living Swordsmith's Name

Some time ago, a customer contacted Tozando Katana Shop with photographs of a katana he had purchased from a well-known international auction website. He wanted to know whether the sword was genuine. It bore the signature Mikami Sadanao saku — the name of a living, licensed swordsmith whose work we know well and represent at our Kyoto gallery.

We do not normally offer authentication as a standalone service. But the case was serious enough — and instructive enough — that we are sharing it here in full.

Five Things That Gave It Away

When comparing the customer's sword against authentic Sadanao pieces in our collection, the differences were unambiguous. Here is what we found, part by part.

1 — The Signature (Mei)

The first image below shows the nakago (tang) of the fake. The second and third show the nakago of an authentic Sadanao katana and tantō from our gallery.

Fake — The engraving is shallow and inconsistent. The chisel work is mechanical in character: uniform pressure, no variation in stroke depth. Compare the thickness and angle of each character against the authentic pieces below.

Authentic — Katana — Sadanao's signature shows controlled variation in each stroke: different pressures, different angles, the natural rhythm of a craftsman who has signed thousands of blades. No two characters are mechanically identical.

Authentic — Tantō — A second authentic piece for comparison. Note the consistent character of the handwork across both genuine pieces — and how different it is from the fake above.

2 — The Yasurime (File Marks on the Tang)

On an authentic contemporary Japanese sword, the yasurime — the pattern of file marks on the nakago — is applied by hand. Each mark is slightly different in depth and angle. On the fake, the yasurime was clearly applied by machine: perfectly regular, perfectly shallow, with none of the variation that hand-filing produces. This is one of the clearest indicators of a sword made outside Japan's traditional production system.

3 — The Mekugi (Retaining Pin)

The mekugi — the small peg that secures the blade in the handle — on the fake appeared to be half-broken and was of extremely poor quality. A genuine mekugi is made from seasoned bamboo and fitted with care. No licensed Japanese swordsmith would present a blade with a mekugi in this condition.

4 — The Habaki (Blade Collar)

Fake — The habaki is copper casting, and casting burrs are still visible on the surface. The edges are scratched and discoloured. A habaki of this quality would not leave a Japanese swordsmith's workshop.

5 — The Seppa (Spacer Washers)

Fake — A sword is fitted with a matched pair of seppa. On this fake, the two pieces do not match at all — different profiles, different finishing. On antique swords this can happen through centuries of use and repair. On a contemporary sword presented as new, it is simply evidence of careless assembly. Note also the rough yasurime finish, rust, and scratches visible on the sashiura side.

We showed all of these images to Mikami Sadanao himself. His reaction was one of disbelief — and understandable displeasure that work of this quality was being sold under his name.

Where These Fakes Come From

This is not a cottage industry. The staff of Tozando Katana Shop have visited facilities outside Japan where fake Japanese swords are produced at scale. What we saw were production lines — blades made from inferior steel, fitted with cast metal components, and finished with artificially applied patina to suggest age or use. Signatures are added at the end, chosen based on whichever name appears to command the highest price on the platform where the sword will be listed.

The swords reaching customers through international auction platforms are, in many cases, coming directly from these facilities. The problem is systematic, not incidental.

What a Real Contemporary Japanese Sword Requires

Under Japanese law, a sword may only be called a Japanese sword if it is made from tamahagane — steel smelted from iron sand using traditional methods — folded, forged, and differentially hardened in accordance with centuries-old techniques. Every sword produced this way must be registered with the relevant local authority before it can legally be owned or sold.

The registration certificate (tōken tōroku-shō, 刀剣登録証) is the foundational document of any authentic Japanese sword. Without it, a sword cannot be legally owned in Japan, cannot be exported through proper channels, and should not be purchased by any serious collector.

Beyond registration, a contemporary sword (shinsakutō) commissioned or purchased through a reputable source will come with a certificate issued by the All Japan Swordsmith Association confirming the swordsmith's identity. For export outside Japan, the Shinsakutō Certificate issued by the Japan Sword Culture Promotion Association (NBSK) is also required — and provides an additional, independent layer of authentication. You can read more about this process in our article on the Shinsakutō Certificate and Japanese sword export.

The Only Protection That Really Works

It is tempting to reach for a checklist — documents to request, details to verify, red flags to look for. But the reality for international collectors is more complicated. Documentation requirements have changed over time: contemporary swords exported before June 2021 predate the Shinsakutō Certificate system entirely, and were legally exported under different procedures. A sword without a Shinsakutō Certificate is not necessarily suspect; it may simply be older than the system.

The most reliable protection is also the simplest: buy from someone you trust. Documentation can be forged; photographs can be misleading; prices can be made to look plausible. What cannot easily be faked is a long-standing relationship between a dealer and the swordsmiths they represent — one built on a reputation that exists in the real world and that other collectors can verify.

A specialist dealer who has been selling authentic contemporary Japanese swords for decades, who knows the swordsmiths personally, and whose name is attached to everything they sell — that is the foundation of a safe purchase. The case documented in this article did not originate from a specialist dealer. It originated from an anonymous listing on an international auction platform, where no one's reputation was at stake. That, more than any detail of the sword itself, was the first warning sign.