🇯🇵 Japan · Samurai Silver to the Meiji Yen

Old Japanese silver — chōgin, ichibu, and the Meiji Restoration.

Japanese silver coinage tells the story of a closed feudal society opening to the world. From the irregular cast silver bars of the Edo-period samurai economy, to Commodore Perry's 1853 black ships, to the Meiji emperor's introduction of the modern yen in 1871 — Japan's monetary modernization was inseparable from the end of the samurai era and the birth of imperial Japan.

The story

Japanese silver coinage is uniquely structured because Japan was a closed society from 1639 to 1853 (the sakoku period). While Europe was running silver economies and minting Spanish 8 reales by the millions, Japan ran a parallel silver system completely different in form — weight-based, irregular-shaped, and tied to the samurai class.

1. Edo period (1603–1868). The Tokugawa shogunate ran a tri-metallic monetary system: gold (oban, koban) for the samurai elite, silver (chōgin and mameitagin) for trade and the merchant class, and copper (mon) for daily commerce. Silver was struck as irregular oblong bars rather than round coins — the chōgin was a fat silver "bean" weighing about 160 grams. For smaller transactions, samurai used ichibu silver: small rectangular bars worth a quarter ryō (the gold-equivalent unit). This was money that you weighed, not counted. Merchants kept scales.

2. The Black Ships and crisis (1853–1868). Commodore Matthew Perry's arrival in 1853 forced Japan open to international trade. The result was an immediate monetary crisis: foreign silver dollars (Mexican 8 reales, Spanish dollars) flooded in, and the gold-silver ratio difference between Japan and the West (Japan's was ~1:5; the West's was ~1:15) meant Japanese gold flowed out by the ton. Within five years, Japan had lost roughly two-thirds of its gold reserves to arbitrage. The shogunate's monetary system was collapsing.

3. Meiji Restoration (1868–1912). The 1868 Meiji Restoration ended the shogunate, abolished the samurai class, and rebuilt Japan as a modern imperial state. The 1871 Currency Act introduced the yen — a Western-style decimal currency. The 1 Yen silver coin was deliberately specified to match the Mexican peso (26.96 grams .900 silver) so it would be accepted in international trade alongside the dominant silver currency of the era.

"The same year (1871) the samurai were officially disarmed, the silver chōgin was replaced by the round, milled, Western-style yen. The two changes were one change."

4. Modern era (1914–present). Japan suspended the silver standard at the outbreak of WWI in 1914. Circulating silver was gradually withdrawn through the 1930s. Modern Japanese silver is mostly commemorative: the 1964 Tokyo Olympics 1000-yen silver, the 1970 Osaka Expo commemorative, and the ongoing Japan Mint annual programs (Kyoto World Heritage, Olympic anniversaries, Imperial accession ceremonies). The Japan Mint (Zōheikyoku, 造幣局) was founded in 1871 in Osaka (inaugural ceremony April 4, 1871) and remains one of the most technically advanced mints in the world today.

Iconic Japanese silver coins

Edo-period Chōgin Silver Bar

Tokugawa shogunate · 1601–1868

Not a coin in the Western sense — an irregular oblong cast silver bar, about 160 grams of low-purity silver (originally ~80%, debased over time to ~13% by the late Ansei era, 1859). The chōgin was the standard "wholesale" silver for merchants and trade. Smaller transactions used the mameitagin (smaller chōgin) or the ichibu silver (rectangular bars worth ¼ ryō). All weight-based; merchants kept apothecary scales.

Weight: ~160 g (chōgin); ~9 g (mameitagin) Silver: 80% (early Keichō) → ~13% (late Ansei, 1859) Form: irregular cast, stamped with mintmark

Meiji 1 Yen Silver

Empire of Japan · 1870–1914

The first modern Japanese coin and the most-collected piece of Japanese silver. The 1 Yen carries a coiled dragon on the obverse and the legend "1 YEN" in English plus Japanese kanji. The 1870 (Meiji 3) and 1872 (Meiji 5) issues are the most coveted; later years are widely available. Mid-grade circulated examples run $80–200; high grades $500–1,500. Counter-stamped issues for trade in Korea and Manchuria carry significant premiums.

Weight: 26.96 g Silver: .900 fine = ~24.26 g pure Spec match: Mexican peso (deliberate)

Meiji small-denomination silver (5/10/20/50 sen)

Empire of Japan · 1870–1917

Below the 1 Yen, Meiji silver came in 5 sen, 10 sen, 20 sen, and 50 sen denominations — all .800 fine silver (later .720). These were the everyday silver coins of late-imperial Japan. The 50 sen at .720 fine is roughly equivalent to a US half dollar in size and silver content. Mid-grade circulated examples typically run $20–60. The dragon design on the reverse is the same family as the 1 Yen.

Denominations: 5, 10, 20, 50 sen Silver: .800 (early) / .720 (late) Reverse: Imperial dragon (matches 1 Yen design family)

1964 Tokyo Olympics 1000 Yen Silver

Japan Mint · 1964

Japan's return to silver coinage after 50 years off-standard. The 1964 1000 Yen was issued for the Tokyo Olympics and is one of the most-collected modern Japanese coins — obverse shows Mt. Fuji, reverse shows the Olympic rings and cherry blossoms. Mintage was 15 million but the coin is widely held in collector hands. Mid-grade circulated examples $40–80; high grades $150–300.

Weight: 20 g Silver: .925 fine (sterling) Significance: first commemorative silver yen since 1914

Chopmarks: merchant verification stamps

If you spend any time looking at Meiji-era 1 Yen pieces, you'll notice some of them are covered in tiny stamps — small Chinese characters, geometric punches, family glyphs. These are chopmarks: marks that 19th-century Asian merchants struck into silver coins to verify weight and authenticity.

The mechanism was simple. A merchant in Shanghai, Canton, or Hong Kong would weigh an incoming silver coin and bite-test or assay it. Satisfied that it was genuine silver of full weight, he would strike it with his personal punch — the equivalent of a notary stamp. The coin then circulated with that endorsement; the next merchant who accepted it could either trust the existing chops or add his own. A heavily-chopped coin had passed through many hands, each adding a layer of validation.

The Meiji 1 Yen Trade Dollar (struck 1875–1877 specifically for export to Asian markets, slightly heavier than the standard yen at 27.22 g) is the most heavily chopmarked Japanese coin you'll encounter. Mexican 8 Reales, US Trade Dollars, and British Trade Dollars circulating alongside it in the same Chinese ports are similarly marked.

What to look for: single chops with sharp, raised edges (a real punch displaces metal). Modern fakes often try to add cast or stamped chops to lend trade-history credibility, but cast chops look flat and lifeless under magnification. A genuine chop should bite into the surface with crisp boundaries — you can usually feel the displacement with a fingernail.

Pricing implications: a Meiji Trade Dollar with a few clean chops typically prices at par with or slightly below the un-chopped equivalent — collectors are split. Numismatic-grade buyers want clean fields and discount chopped coins; "trade-history" collectors specifically seek chopmarked specimens as artifacts of the 19th-century Pacific silver trade. Heavily-chopped pieces (5+ chops) almost always sell at a discount unless individual chops are historically significant (e.g. attributable to a documented Hong merchant house).

For the regular Meiji 1 Yen (the domestic-circulation 26.96 g coin, not the Trade Dollar), chopmarks are unusual and generally reduce value — these weren't meant for export and shouldn't have ended up in the merchant chain.

Going deeper: The chopmark system is the surface of a much bigger story — how a major commercial economy ran a working silver monetary system for 250 years with no state-issued silver currency. Read the full essay →  |  Silver Without a State arc

A note on samurai-era silver

The Edo-period silver coinage system — chōgin, mameitagin, and the rectangular ichibu silver bars — was entirely abolished in 1871. By 1872 it was illegal to use them in commerce. Most were melted down to provide the silver bullion for the new Meiji yen series.

What survives today is collected as historical artifact rather than circulating money. Authentic Edo-period chōgin bars in good condition trade for $300–1,200 at numismatic auction. Ichibu silver bars are more accessible at $40–120. The Tempo era (1830–1844) issues are particularly heavily counterfeited — the silver content was already debased, and Tempo-era pieces often carry historical premiums that make fakes worthwhile.

If you want to hold a piece of samurai-era money, an ichibu silver bar is the most accessible entry. They're small (about the size of two stacked nickels), unmistakably foreign in form, and authenticated by stamped mintmarks. The Tokugawa Mint records every chōgin issue with its weight and assay, so authentication is well-documented.

Buying old Japanese silver

Japanese silver is well-cataloged and well-priced relative to its rarity. Meiji 1 Yen is the workhorse — common dates trade at $80–200, key dates (1870/Meiji 3, 1872/Meiji 5) trade higher. Sen-denomination silver is the cheap entry at $20–60. Edo period chōgin and ichibu are priced as historical artifacts; expect $40–1,200 depending on the piece.

Authentication: Meiji-era yen are heavily counterfeited (especially the 1870 Meiji 3 issue). Use the authenticity guide — weight (26.96 g for 1 Yen), diameter (38.1–38.6 mm, depending on issue), magnet, SG (10.34 for .900 silver), and the crispness and uniformity of the dragon's scales.