The Swordsmith's Annual 24-Blade Limit: Details of the Agency for Cultural Affairs' Production Cap and Its Impact on Craftsman Livelihoods

What is the 24-sword annual limit?

In modern Japan, to manufacture Japanese swords, one must be a certified swordsmith who has obtained "Manufacturing Permission for Art Swords and Blades" from the Agency for Cultural Affairs. For swordsmiths holding this permission, there is no statutory clause in the Swords and Firearms Regulation Law or in Agency for Cultural Affairs directives that explicitly stipulates the number of swords to be made. What is called the "24-sword limit" is a practical standard derived by working backward from administrative guidance on production time—namely, that the creation of a tachi takes 15 days or more and a tanto takes 10 days or more. It is not a statutory ceiling but rather a practice that has become established through convention.

To be precise, the number of swords and blades that a single certified swordsmith can manufacture and register in one year is, in principle, limited to 24 pieces or fewer. The figure of "24 pieces" is said to have been set as a value corresponding to the labor required to complete approximately one sword over the course of two weeks and to the safe annual operation as a craftsman.

Why is an upper limit necessary? At the root of this lies the fact that Japanese swords are subject to regulation under the Swords and Firearms Regulation Law. Even swords recognized as traditional crafts are treated in law as "swords and blades," and registration and filing are required for all manufacturing, possession, and transfer. If unlimited mass production were allowed, there would be a risk of unmanaged blades circulating in the market, so it is necessary to keep the number of pieces produced within a range that the administration can monitor.

Regulatory implementation—Breakdown of the 24 pieces

The 24-piece limit includes all swords regardless of type of blade. The target blades are as follows.

• tachi
• uchigatana (commonly called katana)
• tanto
• wakizashi
• naginata
• yari

All of these blades are subject to the same count.

In practice, the swordsmith follows the following procedure.

1. After completion of each sword, the swordsmith applies for inspection from the prefectural board of education with jurisdiction, presenting it as "Japanese swords as artworks."
2. Swords that pass inspection receive a "registration certificate," and the issuance of this certificate is counted toward the annual total.

In other words, only upon filing a completed sword is it recorded as "1 piece," so swords under construction (the blade alone) do not count.

However, in practice, sword manufacture often involves division of labor among forging, polishing, and fitting (koshirae) processes. When a blade forged by the swordsmith himself is completed through the hands of other craftspeople such as polishers and fitters, the count at the forging stage is attributed to the swordsmith. On the other hand, the manufacture of sword fittings (tsuba, menuki, tsuka, saya, etc.) belongs to a different trade and is not included in the 24-piece limit.

Exception provisions and special categories

There are cases where exceeding 24 pieces is possible within the system.

The most well-known case is swords submitted to exhibitions such as the "Contemporary Sword Crafts Exhibition" sponsored by the Agency for Cultural Affairs. For swords created specifically for submission to authorized exhibitions or competitions, additional pieces may be permitted upon prior application. However, this is an exceptional case and is not automatically granted every year.

Additionally, special exceptions may be applied on a case-by-case basis for dedication swords or commemorative swords commissioned by national or local governmental bodies or museums. For example, this includes the case of specially creating a tachi for dedication to a shrine.

On the other hand, practice swords and iaito (soft-steel or zinc-alloy blades) that are distinct from non-certified "real swords" fall outside the scope of the Agency for Cultural Affairs' art sword certification system, and the 24-piece limit does not apply. These are operated as a separate industry.

Impact on swordsmith income structure

The 24-piece limit directly affects a swordsmith's annual income. Simply put, the revenue from a maximum of 24 pieces annually becomes the swordsmith's income ceiling.

The price of a single sword handled by a modern certified swordsmith varies greatly depending on the difficulty of the work, the swordsmith's reputation, materials, length, and whether it includes fittings. For an unknown young swordsmith, the price ranges from approximately 200,000 to 500,000 yen from rough forging to completion, while famous swordsmiths or those at the "mukaninsa" (no-inspection) level can reach several million yen or more per piece.

If a swordsmith were to sell 24 swords at 500,000 yen each per year, the calculation would be 12 million yen in annual income, but this is merely an ideal figure. When accounting for the time, labor, material costs, fuel expenses, and workshop maintenance costs spent on each forged piece, the actual take-home income drops significantly. In reality, many young and mid-career swordsmiths manage to receive orders and sell only about 10 to 15 pieces annually. In such cases, annual income often amounts to several million yen, making the maintenance of one's livelihood a management challenge.

For this reason, most swordsmiths have secondary income alongside sword manufacture. Representative examples include the following.

• Demonstrations of forging and hands-on forging workshops
• Manufacturing and selling forged products other than blades (farm implements, kitchen knives, carving tools, etc.)
• Teaching positions at universities and cultural institutions

Impact of the 24-piece limit on technical standards

As a side effect of this system, the constraint on quantity has also served to promote improvements in quality. In an environment where mass production is structurally impossible, there is a natural tendency to spare no time or effort on each piece. Since swordsmiths seek to gain maximum reputation and recognition within the limit of 24 pieces, their attention naturally focuses on meticulous craftsmanship, careful selection of materials, and refinement of the hamon. Furthermore, the low annual production volume is also connected to the brand value of "rarity." The fact that Japanese swords cannot be mass-produced has become a purchase motivation for modern collectors.

Conclusion—Craftsmanship culture nurtured by constraint

The swordsmith's annual 24-piece limit is a practice based on administrative guidance regarding production time, and it simultaneously functions as a cultural framework of "honest craftsmanship labor." The swordsmith's approach of engaging with each piece individually might have been difficult to maintain without this system. The limit is both a constraint and also a mechanism to protect contemporary Japanese swords as "crafted works."

There are approximately 300 certified swordsmiths today (according to the Agency for Cultural Affairs). Of these, approximately 200 are said to be actively continuing sword manufacture. The balance they achieve between management and technical skill within the 24-piece limit while supporting Japan's sword culture provides an important perspective for considering the protection of traditional crafts.