---
title: "Kyoho Oban"
url: "https://ittendo.com/en/coinpedia/edo-gold-014-kyoho-oban"
site: "ITTENDO"
type: "coinpedia"
category: "edo-gold"
series: "Edo Gold Coins"
lang: "en"
---
# Kyoho Oban

> Conclusion: Kyoho Oban is a high-purity gold coin symbolizing Yoshimune's reforms, offering both historical and tangible asset value for advanced collectors and investors.

- 時代: 江戸
- 素材: 金
- 額面: 両 / 分 / 朱
- 発行量: 通常
- 価格帯: 中堅

## The Background of the Kyōhō Ōban's Creation

The Kyōhō Ōban (享保大判) was first struck in 1725, as part of the "Kyōhō Reforms" led by Tokugawa Yoshimune, the eighth shōgun of the Edo Shogunate. At this time, the shogunate faced the urgent task of restoring trust in coinage, which had been eroded by repeated reminting. In particular, coins issued during the Genroku era had fallen to a notably low gold fineness.

Yoshimune first issued the Kyōhō Koban (享保小判), raising the fineness of the koban substantially, and following its success, applied the same reform to the ōban. The gold fineness of the Kyōhō Ōban is approximately 68% (Currency Museum Permanent Exhibition Catalogue), an improvement of approximately 16 percentage points over the preceding Genroku Ōban (元禄大判) (52%, catalogue), demonstrating the shogunate's strong commitment to fiscal soundness and the restoration of its authority.

The confirmed weight is not recorded in the catalogue pages obtained (ōban were traditionally called "Jūryō" (拾両); the Tenshō Ōban (天正大判) is recorded in the catalogue as approximately 165g). The increase in fineness symbolizes Yoshimune's economic policy of establishing the value and trustworthiness of coinage by raising its "quality." Since ōban were used primarily for gifts and ceremonial purposes rather than as circulating currency, their high fineness served as an important means of demonstrating the shogunate's authority at home and abroad.

For a comprehensive overview of Edo-period monetary policy, see [Introduction to Edo Gold Coins (Koban & Ōban)](/coinpedia/edo-gold-001-overview). The appearance of the Kyōhō Ōban can be described as an epochal event in the economic history of this era.

## The Design and Characteristics of the Kyōhō Ōban

The Kyōhō Ōban is a large oval gold coin measuring approximately 170mm in height and approximately 100mm in width, and its imposing presence overwhelms the viewer. On the obverse, the denomination "拾両" and the cursive monogram (kakihan) of the incumbent head of the Gotō family—who had served for generations as the calligraphers of ōban inscriptions—are written in ink. These ink inscriptions were written by hand on each individual coin, and each reflects the individual character of the brushwork.

Surrounding the ink inscription are beautifully applied paulownia (kiri) crests, symbolizing Japanese authority, and auspicious fan stampings. The deep golden color produced by the approximately 68% gold fineness (catalogue) makes the superiority of its quality immediately apparent when compared to the Genroku Ōban. This hue, which shifts in character depending on how light falls upon it, speaks to the high level of craftsmanship of the era.

On the reverse, the "goza-me" (ゴザ目)—a pattern transferred from the reed mat on which the coin was cast—is visible, along with countermarks indicating the production number and quality assurance. In addition, the natural casting patterns known as "fuki-me" (吹き目) differ from coin to coin, further enhancing their appeal as works of craft. This weighty presence and refined design have established the Kyōhō Ōban's value as a gold coin representative of the Edo period.

For a deeper exploration of the significance of ōban design and the factors that determine the value of old coins, see [Factors That Determine the Value of Old Coins](/coinpedia/basics-001-value-drivers).

## Gold Fineness and Weight: The Source of Its Value

The gold fineness of the Kyōhō Ōban is approximately 68% (catalogue), a substantial increase from the 52% (catalogue) of the preceding Genroku Ōban. This increase in fineness was not simply a matter of raising the gold content, but an expression of the shogunate's strong resolve to restore trust in coinage. The confirmed weight is not recorded in the catalogue pages obtained. No calculation of gold content or bullion value from an unconfirmed weight figure will be made here (such details will be added together with the complete record once a source is obtained).

The large oval form stands out even among Edo-period gold coins (confirmed dimensions are not recorded in the catalogue pages obtained). When held in the hand, one feels the substantial weight of 165g, conveying a presence on an entirely different level from that of the koban. This gold fineness approaches that of modern 18-karat gold (75% fineness), and its brilliance, combined with its historical value, continues to captivate collectors.

For the appeal of high-fineness old coins and the criteria for assessing their authenticity, please also refer to [Standards for Grading Old Coins](/coinpedia/basics-003-grading).

## Key Points for Authentication: The Ink Inscription and Monogram

In authenticating the Kyōhō Ōban, one of the most important elements is the ink inscription "拾両" and the monogram (kakihan) of the Gotō family head on the obverse. These are said to have been written directly by hand by successive heads of the Gotō family, and the brushwork bears the strong imprint of each head's individual character and the characteristics of each era. The gradation of the ink, the movement of the lines, the degree of fading, and the shape and placement of the monogram are all indispensable information for identifying genuine examples.

Among forgeries, some meticulously copy the ink inscription by hand or transfer it. Such forgeries can be difficult to distinguish from the genuine article at first glance, making the eye of a skilled appraiser necessary. The condition of the ink's fading, flaking, and bleeding also serves as an important clue indicating the history and storage conditions the ōban has undergone.

The precision of the paulownia and fan crests is also a point of authentication. Genuine stampings have uniform depth and clear outlines, and are carefully finished down to the finest details. Furthermore, X-ray fluorescence analysis is effective as an initial indicator for confirming gold fineness (the catalogue records approximately 68%). However, authenticity cannot be determined from a single measurement alone.

Authentication of high-value old coins such as these requires a high degree of expertise; when purchasing, it is advisable to always select pieces accompanied by a certificate from a trustworthy professional authentication institution (such as the Japan Numismatic Dealers Association). For detailed information on identifying forgeries, see [Guide to Detecting Fakes and Altered Coins](/guide/fake-detection).

## The Kyōhō Reforms and the Symbolic Nature of the Ōban

The minting of the Kyōhō Ōban played a symbolic role in the "qualitative restoration of coinage" policy that was part of the Kyōhō Reforms promoted by Tokugawa Yoshimune. The Genroku Ōban (minted in 1695) had seen its gold fineness fall to the low level of 52% (catalogue), greatly diminishing the inherent dignity of the ōban and signaling to all the shogunate's fiscal deterioration and loss of authority.

Yoshimune first restored confidence in the market by raising the gold fineness of the koban to the high level of 86.8% with the Kyōhō Koban. Building on that success, he also carried out an increase in the ōban's fineness to approximately 68% (catalogue), seeking to improve the credibility of the currency as a whole. The ōban was used primarily not as an everyday circulating currency for common people, but in contexts where decorum was paramount—such as rewards granted by the shōgun's house to daimyo, gifts exchanged among daimyo, or donations to temples and shrines.

For this reason, its high fineness fulfilled an important function beyond mere economic value, serving as a "calling card of the state" that demonstrated the shogunate's authority, fiscal soundness, and national prestige. The Kyōhō Ōban can be said to have symbolized both the realization of the austere and robust society that Yoshimune's reforms aimed for, and the shogunate's firm governance.

For a deeper exploration of the historical background of Edo-period coinage, see [Introduction to Edo Gold Coins (Koban & Ōban)](/coinpedia/edo-gold-001-overview).

## Comparison with Previous Ōban Generations and Market Evaluation

Comparing the Kyōhō Ōban with ōban of previous generations clarifies its historical and market position. The [Keichō Ōban](/coinpedia/edo-gold-004-keicho-oban) (慶長大判), the first ōban of the Edo period (1601), had a gold fineness of 68% (Currency Museum Permanent Exhibition Catalogue) and established the standard for subsequent ōban. In the market, its scarcity due to the small number of surviving examples gives it a particularly high evaluation.

By contrast, the Genroku Ōban (1695) saw its gold fineness plunge to 52% (catalogue), greatly undermining the authority of the Keichō Ōban, and it tends to command a lower market value compared to other ōban. The Kyōhō Ōban (1725) was minted in a manner that recovered from the decline in fineness of the Genroku Ōban, substantially raising the fineness to 68% (catalogue) and restoring it to the same level as the Keichō Ōban. Its historical background and high fineness make it very highly regarded by collectors.

The late Edo-period [Tenpō Ōban](/coinpedia/edo-gold-015-tempo-oban) (天保大判) (1838) maintained the same fineness level as the Kyōhō Ōban at 68% (catalogue). In terms of mintage, the Kyōhō Ōban is not as scarce as the Keichō Ōban, but far scarcer than the Genroku Ōban, and fine-condition examples consistently attract attention in the market. Among all generations of ōban, the Kyōhō Ōban can be said to have established its own distinctive value as a "symbol of reform."

## The Risks of Forgeries and Counterfeits, and How to Identify Them

Because the Kyōhō Ōban is a high-value old coin, various forgeries and counterfeits circulate in the market. The most dangerous are high-precision replicas produced using modern precision technology. These forgeries are often made of brass or copper with gold plating applied, and there are many cases in which visual inspection alone makes it extremely difficult to distinguish genuine from fake.

In particular, items on which the surface ink inscription has been precisely printed, or items on which an actual ink inscription has been transferred to create a forgery, may cause even experts to hesitate at first sight. The way the ink bleeds, the naturalness of the brushwork, and the subtle angle and variation in line weight of the monogram are points that are difficult to detect without the eye of a seasoned appraiser.

For authentication, weight measurement and X-ray fluorescence analysis are effective as initial indicators (as the confirmed weight figure is not recorded in the catalogue, no numerical standard is presented; the catalogue records the fineness as approximately 68%). However, a match in measurements alone is insufficient to confirm authenticity. In addition to scientific analysis, selecting pieces that have passed through a professional authentication institution (such as JNDA: the Japan Numismatic Dealers Association) is a leading means of reducing the risk of acquiring forgeries.

Comprehensive knowledge for identifying fake old coins can be acquired in [Guide to Detecting Fakes and Altered Coins](/guide/fake-detection).

## The Kyōhō Ōban in the Collector's Market

The Kyōhō Ōban is considered to appear in the market relatively more frequently than some other generations of ōban, yet even so, its circulation frequency is by no means high. Market prices fluctuate significantly depending on condition, the clarity of the ink inscription, the beauty of the monogram, and the presence or absence of damage and staining.

For ōban collectors, the Kyōhō Ōban is regarded as one of the "essential items" alongside the [Keichō Ōban](/coinpedia/edo-gold-004-keicho-oban) and the [Tenpō Ōban](/coinpedia/edo-gold-015-tempo-oban). The fact that it symbolizes the restoration of monetary credibility within the historical context of Tokugawa Yoshimune's Kyōhō Reforms also contributes to its high esteem among collectors.

At major auctions, the Kyōhō Ōban is consistently a subject of attention. In particular, examples in which the ink inscription is perfectly preserved and the metal shows no significant damage frequently achieve hammer prices exceeding pre-sale estimates, demonstrating its popularity and stable value. For details on where to acquire coins in the market and how to make use of auctions, see [Introduction to and Use of Old Coin Auctions](/coinpedia/basics-007-auction).

Individual prices and auction results will be posted in the market records only for those cases for which verified records (including event, lot, source URL, and date of confirmation) have been obtained.

## Its Position as a Collectible and Points to Note

The Kyōhō Ōban, possessing the three qualities of "high value," "high fineness," and "high liquidity (relative to other ōban)," is an investment-grade object suited to advanced collectors and high-net-worth individuals. Its substantial gold fineness (approximately 68% per catalogue) provides underlying support for market prices. In periods when gold prices rise, bullion value and collector value reinforce each other, offering the prospect of increased asset value.

Since the annual volume circulating in the market is limited, fine-quality examples routinely attract multiple competing bidders, and actual transaction prices frequently exceed listed prices. This is a typical example of scarcity and strong demand driving up prices. For high-net-worth individuals, it also attracts attention as a means of inheritance tax planning and portfolio diversification. The ability to combine the cultural property value of ownership and long-term asset preservation—distinct from conventional assets such as equities and real estate—is a major attraction.

However, as a high-value item, sufficient financial resources and deep knowledge of authenticity assessment are indispensable for investment. The risk of forgeries is high, and counterfeits involving falsified ink inscriptions and gold-plated imitations do exist; therefore, purchases should be limited to pieces certified by reliable authentication institutions. Furthermore, since liquidity is limited, selling requires identifying the appropriate channel and timing. The Kyōhō Ōban can be said to be particularly well suited to advanced investors who take a long-term view of asset preservation and appreciate Japanese historical culture.

For the fundamental thinking behind old coin investment, see [The Difference Between Investing and Collecting: A Guide to Thinking](/coinpedia/basics-002-invest-vs-collect).