
Image: Japanese holed coins (square-holed cash coins) / Jean-Michel Moullec from Vern sur Seiche (35, Bretagne), France / Wikimedia Commons / CC BY 2.0(source)
Wartime 50 Sen Brass Coin — Tracing the History of Wartime Currency
The 50 sen brass coin issued from Shōwa 13 (1938). A sign of changing coin materials driven by military expansion following the opening of the Second Sino-Japanese War
Subject coin: 戦時50銭黄銅貨
Overview
The wartime 50 sen brass coin is an essential piece when discussing the currency history of Japan from 1938-1945. Issued from Shōwa 13 (1938), it marks the first sign of changing coin materials due to military expansion following the opening of the Second Sino-Japanese War. This article traces the wartime 50 sen brass coin as a story, from the historical context of its birth, through the technology of its minting, to its actual circulation, and its impact on future generations, aligning with historical facts. Understanding the historical context that this currency carried back then, beyond mere market numbers, should significantly alter the perception of its value. The history of Japanese currency, beginning with the Wadōkaichin coined in the Nara period, passing through the diverse gold and silver currency of the Edo period, and transitioning into modern currency in the Meiji era, can also be explored in detail with the articles Value and Identification of Modern Coins and Transition of Coins from Meiji to Shōwa.
Specifications
- Denomination
- —
- Minting period
- 1938-1945
- Metal composition
- —
- Weight
- —
- Dimensions
- —
- Mintage
- 不詳(諸説あり)
- Mint supervisor
- 不詳
- Market price
- 状態により変動(落札履歴を参照)
The Era of the Wartime 50 Sen Brass Coin — Background of Minting

Image: Modern Japanese coinage / Coindesmonnaies / Wikimedia Commons / CC BY-SA 4.0(source)
The emergence of the wartime 50 sen brass coin is deeply intertwined with the political and economic circumstances of its time. Wartime currencies were minted in response to the financial and distribution challenges faced by rulers, born out of society's necessity. Starting from the background, we explore under what conditions and why this currency was needed. The fact of its issuance in Shōwa 13 (1938) is crucial for understanding its historical placement. The continued production until Shōwa 20 (1945) is similarly critical. Additionally, referring to Check Auction Prices for Old Coins can deepen understanding. Considering the price levels and systems of the time when it was minted, it becomes evident that the meaning of even coins with the same name can significantly vary depending on the issue period. Existing specimens become more rare over time, increasing their scarcity if they remain in mint condition. Market evaluations are determined by the interplay of scarcity, preservation state, and collection popularity; none of these alone explains the price.
How the Wartime 50 Sen Brass Coin Was Made — Materials and Techniques

Image: Modern Japanese coinage / Coindesmonnaies / Wikimedia Commons / CC BY-SA 4.0(source)
The materials and manufacturing methods are indispensable when discussing the value of the wartime 50 sen brass coin. Wartime currencies reflect the craftsmanship of the workers of the time in the metal composition and finishing techniques, directly connecting to modern evaluations. By carefully tracing the choice of materials and the process of creation, one can see the accumulation of techniques in a single piece. The adoption of brass (60% copper, 40% zinc) is crucial for understanding its historical placement. Additionally, referring to Market Price Trends Using Price Charts can deepen understanding. Existing specimens become more rare over time, increasing their scarcity if they remain in mint condition. Market evaluations are determined by the interplay of scarcity, preservation state, and collection popularity; none of these alone explains the price. Grasping key points like the script, metal color, dimensions, and weight is the first step in distinguishing authenticity and lineage. Learning the historical background allows one to feel the cultural depth of the currency that market numbers alone can't measure. As one continues to collect, the historical context and minting circumstances of each brand connect like a chain, growing one’s knowledge three-dimensionally.
The Wartime 50 Sen Brass Coin and People’s Lives — Circulation and Economy

Image: Modern Japanese coinage / Coindesmonnaies / Wikimedia Commons / CC BY-SA 4.0(source)
After issuance, the wartime 50 sen brass coin circulated hand to hand, used in everyday life. Understanding how wartime currency circulated in society and affected prices and transactions is central to numismatic history. By examining the economic movements and public reactions of the time, we unravel the role this currency played. Its pioneering role in changing materials due to increased war expenditure from the Second Sino-Japanese War (1937 onwards) is crucial for understanding its historical placement. Additionally, referring to Grading Standards for Old Coins can deepen understanding. Market evaluations are determined by the interplay of scarcity, preservation state, and collection popularity; none of these alone explains the price. Grasping key points like the script, metal color, dimensions, and weight is the first step in distinguishing authenticity and lineage. Learning the historical background allows one to feel the cultural depth of the currency that market numbers alone can't measure. As one continues to collect, the historical context and minting circumstances of each brand connect like a chain, growing one’s knowledge three-dimensionally. A single piece of old currency serves as a document reflecting the economic policies and lives of people of its time, with its value perception changing as one understands its background.
Legacy of the Wartime 50 Sen Brass Coin — Influence on Future Generations

Image: Modern Japanese coinage / Coindesmonnaies / Wikimedia Commons / CC BY-SA 4.0(source)
Even after the era ended, the wartime 50 sen brass coin left its mark on the history of subsequent currency and collection. We look back on how wartime currencies were positioned amidst re-minting, abolition, and succession, and how they're evaluated today. Considering the meaning of a past piece in today’s market enhances the precision of value judgment. The denomination of 50 sen as a mid-level payment unit in everyday life at the time is crucial for understanding its historical placement. Additionally, referring to Monitor Prices of Concerned Coins in the Vault can deepen understanding. Grasping key points like the script, metal color, dimensions, and weight is the first step in distinguishing authenticity and lineage. Learning the historical background allows one to feel the cultural depth of the currency that market numbers alone can't measure. As one continues to collect, the historical context and minting circumstances of each brand connect like a chain, growing one’s knowledge three-dimensionally. A single piece of old currency serves as a document reflecting the economic policies and lives of people of its time, with its value perception changing as one understands its background. Considering the price levels and systems of the time when it was minted, it becomes evident that the meaning of even coins with the same name can significantly vary depending on the issue period.
Value & Rarity
The market value of the wartime 50 sen brass coin is determined by three factors: scarcity, preservation state (grade), and collection popularity. Even within the same wartime currency, prices can vary many times over depending on minting period or script differences or near-unused condition. Brands with limited remaining specimens rarely appear on the market, and well-preserved pieces grow scarcer over the years. When reading the market, confirming actual sales prices from several examples rather than offered prices is prudent. The latest price movements can be checked with Monitor Prices of Concerned Coins in the Vault. Market evaluations are determined by the interplay of scarcity, preservation state, and collection popularity; none of these alone explains the price. Grasping key points like the script, metal color, dimensions, and weight is the first step in distinguishing authenticity and lineage.
Conclusion
The wartime 50 sen brass coin was born out of the necessity of the era from 1938-1945, played a role in people's lives, and left a legacy for future generations. Understanding the history behind a single coin develops a certain expertise that market numbers alone cannot provide. Those interested in wartime currency are advised to patiently compare multiple trading data and gradually develop their judgment criteria.
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Dealers
Dealers Handling This Category
A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
Japan Coin Auction (JCA)
Tokyo
Holds regular auctions with reliable hammer price data, making it a useful resource for tracking market values. Caters to a wide range of collectors from beginners to advanced buyers.
Ginza Coins
Ginza, Chuo-ku, Tokyo
One of Japan's most established numismatic dealers. The scale and variety of their regular auctions is among the largest in the country. Their catalogs are considered a benchmark for market pricing.