Premium Recommendation — Reversed Die Double-Flag Coin, 30° Rotation Error

* 本次藏品：双旗币背逆（30°）错版*

典藏尺寸：重：10.6g 直径：32.5mm

民国双旗铜元，是我国近代货币史上极具时代标识的流通钱币，承载辛亥革命的历史印记，存世总量虽大，但带明显背逆角度的错版存世寥寥无几，是钱币收藏圈公认的小众稀缺品类。本次重磅推出典藏珍品 —— 民国双旗币 30° 背逆错版铜元，实测重量 10.6g，直径 32.5mm，形制规整、包浆老熟、背逆特征清晰直观，兼具历史考古价值、错版稀缺溢价与长期保值潜力。

1912 年辛亥革命推翻清王朝，中华民国正式建立，全新的货币体系随之诞生，双旗铜元成为民国初年民间主流流通辅币，彻底取代清代龙纹铜圆，是新旧时代更迭最直观的实物见证。 钱币正面镌刻交叉十八星铁血旗与五色共和旗，双旗上方点缀五角星，外围环绕省份纪年文字，代表各省独立造币厂；背面核心图案为嘉禾稻穗，寓意五谷丰登、国泰民安，外环标注面值英文 TWENTY CASH（二十文）。一面革命旗帜，一面农耕嘉禾，将共和革命理想与传统农耕文明融为一体，方寸铜片完整记录民国初年的社会思潮与政治变革，是研究近代经济、造币工业、辛亥革命史不可替代的小型实物史料。

民国初年各省造币厂机器老旧、工人铸币工艺尚未标准化，模具调校、压币流程极易出现失误，由此诞生各类错版币。正常流通铜元正反两面图案呈 180 度标准对转，而背逆币属于模具装配失误形成的先天性错版，在当年大量流通币中占比极低，出厂后历经近百年民间流通损耗，完整留存至今、背逆角度清晰的藏品更是凤毛麟角，每一枚都具备独一份的收藏特殊性。

正面双旗面：纹饰完整，岁月老包浆覆盖

钱币正面以双旗为主视觉，十八星旗、五色旗交叉缠绕，旗面纹路、星点、旗穗线条完整清晰，无大面积磨损漏纹；旗顶五角星立体凸起，细节无抹平模糊。币缘环绕省份纪年文字，字体笔画棱角尚存，长期流通形成深浅交织的老铜包浆，绿锈、红褐铜锈自然分层附着币面，无人工酸洗、做旧痕迹。币边齿圈规整，无后期打磨、裁剪，原厂冲压轮廓保存完整，流通磨损均匀，属于老藏家口中标准 “传世老包浆” 品相。

背面嘉禾面：稻穗层次立体，文字完整

钱币背面嘉禾稻穗纹路饱满，左右两束稻穗颗粒分明，叶脉、穗须冲压深度充足，没有因长期流通出现大面积平磨；底部 TWENTY CASH 英文字母清晰可辨，无缺笔、糊字。币面整体氧化均匀，铜质基底紧实，无沙眼、漏铜、裂洞，币身无弯折变形，保存状态远超同批次普通流通品。

The Republic of China Double-Flag Copper Coins are emblematic circulating currency in China’s modern monetary history, bearing the historical marks of the 1911 Revolution. While ordinary specimens survive in large quantities, error coins with obvious rotated reverse misalignment are extremely scarce, a coveted niche category widely recognized by numismatists. We are proud to present this elite collectible — a Republic of China Double-Flag Copper Coin with a 30-degree rotated reverse mint error. It weighs 10.6 grams with a diameter of 32.5 millimeters, featuring a well-proportioned standard shape, natural aged patina, and distinctly visible rotation error. It boasts irreplaceable historical archaeological value, scarcity-driven market premium, and reliable long-term value retention potential.

The 1911 Revolution toppled the Qing Dynasty and founded the Republic of China, bringing forth a brand-new monetary system. Double-Flag copper coins became the primary circulating fractional currency in the early Republican era, fully replacing the dragon-pattern copper coins of the Qing court. They serve as tangible physical evidence marking the transition between two eras. The obverse of the coin is engraved with the crossed Eighteen-Star Iron-Blood Flag and Five-Colored Republican Flag, topped with a five-pointed star. Provincial and year inscriptions encircle the central motif, denoting independent provincial mints across the nation. The reverse centers on grain sprigs of rice and millet, symbolizing abundant harvests and national peace, with the face value “TWENTY CASH” inscribed along the outer rim. One side bears the revolutionary banners of republicanism, the other the grain sprigs representing agrarian civilization. This tiny copper disc encapsulates the social ideologies and political transformations of early Republican China, acting as an irreplaceable miniature primary source for research into modern economics, minting industry, and the history of the 1911 Revolution.

In the early Republican years, provincial mints relied on outdated machinery with unstandardized casting procedures, frequently leading to misalignments during die calibration and striking — the root of all varieties of mint error coins. Standard legitimate copper coins feature obverse and reverse designs aligned at a perfect 180-degree inversion. Rotated reverse coins, by contrast, are intrinsic mint errors caused by improper die installation. Such misstruck pieces made up only a tiny fraction of all circulating coinage at the time. After nearly a century of wear and tear from public circulation, intact survivors with clearly measurable rotation angles are exceedingly rare, each possessing a one-of-a-kind collecting character.

Obverse (Double-Flag Side): Intact Motifs Coated in Natural Aged Patina

The obverse is dominated by the interwoven Eighteen-Star and Five-Colored Flags. Fine details including flag folds, star motifs and flag tassels remain fully defined, free from heavy wear that erases engraving details. The five-pointed star atop the flags stands out in bold relief with no blurred or flattened features. Provincial and year characters line the coin’s rim, retaining sharp, crisp strokes. Generations of circulation have built up a layered, authentic antique copper patina: verdigris and reddish-brown copper oxidation rest naturally on the surface, with no signs of artificial acid cleaning or artificial aging. The reeded coin edge is uniform, untouched by post-mint grinding or trimming, preserving its original striking contour. Wear is evenly distributed across the coin, classifying it as a classic “heritage patina” specimen prized by veteran coin collectors.

Reverse (Grain Sprig Side): Three-Dimensional Rice Motifs with Legible Lettering

The reverse features full, well-defined grain sprigs. Individual rice kernels, leaf veins and fine grain awns were struck in deep relief, free from large flattened areas caused by prolonged circulation. The English denomination “TWENTY CASH” at the bottom rim is fully legible, with no missing or blurred letters. Oxidation spreads evenly across the entire coin surface; the copper core remains dense and solid, without casting pits, copper voids, cracks or bending. Its state of preservation far surpasses average circulated coins from the same mintage batch.

* 本次藏品：双旗币背逆（30°）错版*

典藏尺寸：重：10.6g 直径：32.5mm

常规合格铜元，翻面后正反面图案呈完全倒置 180°；而此枚钱币因造币厂装配模具时，背面嘉禾模具与正面双旗模具发生偏移，形成固定 30° 旋转夹角，也就是收藏圈专业定义的30° 背逆错版。 手持钱币翻面对照，双旗图案与嘉禾稻穗存在清晰可测量的 30 度扭转错位，偏差角度稳定、特征直观，无需借助专业仪器，肉眼即可清晰分辨，不属于轻微模具晃动产生的 10° 以内微小偏差，是市场认可度最高、溢价空间最稳定的中角度背逆错币。 背逆属于铸币出厂前就存在的原生工艺错误，并非后天磕碰、人为扭转改造，是钱币本身自带的天然稀缺标识，每一枚背逆币都是独一无二的铸造瑕疵孤品，不存在两枚角度、状态完全一致的错版，收藏独属性拉满。

双旗币诞生于民国初创阶段，一面双旗代表辛亥革命共和革命，一面嘉禾代表农耕民生，小小的铜元串联起清末民初政权更迭、货币改制、近代工业造币史。普通钱币仅具备流通史料价值，而背逆错版币额外记录了民国早期落后造币工业的工艺短板，兼具经济史、工业史双重研究意义，私人收藏等同于留存一件小众近代史实物标本。

钱币自古被视作 “财库载体”，铜元藏家素有 “藏错币，遇横财” 的收藏说法，错版币寓意 “与众不同、机缘独得”；双旗嘉禾题材自带国泰民安、五谷丰登的吉祥内涵，背逆错版因天生独特，寓意鸿运独到、机遇难得。无论是收藏入册，还是放置文房、茶室陈设，既能够装点中式收藏空间，又承载招财纳福的美好期许，受众覆盖资深钱币藏家、文玩爱好者、风水藏品收藏人群。

此枚 30° 背逆双旗币尺寸标准，直径 32.5mm，重量适中，包浆层次丰富，红绿古锈交错极具复古美感。正反面纹饰完整立体，30° 背逆偏差肉眼清晰可见，单独装币盒、配收藏展示册陈列，对比普通无错双旗币视觉差异极强，文房、收藏展厅陈列辨识度拉满，是钱币收藏册中极具亮点的特色藏品，有明确铸造错误、完整时代特征的老铜元，体量小巧易收纳、不易损毁，文史信息完整，可作为家族文玩藏品代代留存，兼具历史科普与文化传承意义。

Standard certified copper coins feature obverse and reverse designs perfectly inverted at a 180-degree rotation when flipped over. This coin, however, bears a fixed 30-degree rotational offset caused by misalignment between the obverse double-flag die and reverse grain sprig die during die assembly at the mint — professionally termed a 30° rotated reverse mint error among numismatists.

When the coin is flipped for visual comparison, a measurable 30-degree twist gap is clearly visible between the double-flag motif and grain sprigs. The rotational deviation is consistent and visually obvious, identifiable with the naked eye without professional testing equipment. Unlike minor rotational shifts of less than 10° resulting from loose die vibration, this mid-angle rotated reverse error enjoys the broadest market recognition and the steadiest value appreciation potential.

Rotated reverses are inherent manufacturing defects formed before coins left the mint, not later damage from impact or artificial tampering. This natural flaw makes each rotated reverse coin a unique marker of scarcity. Every such error coin is a one-of-a-kind mint specimen; no two share identical rotational angles or preservation conditions, endowing each piece with unparalleled exclusive collectible value.

Double-Flag coins originated in the formative early years of the Republic of China. The crossed flags symbolize the republican revolution of the 1911 Revolution, while the grain sprigs represent agrarian livelihood. This tiny copper token encapsulates the regime transition from the late Qing to early Republican era, currency reform movements, and the history of modern minting industry. Ordinary circulated coins only hold archival value as former currency, yet rotated reverse error coins additionally document the technical limitations of primitive early Republican minting facilities, carrying dual research significance for economic and industrial history. Private ownership of such a piece preserves a rare physical artifact of modern Chinese history.

Coins have long been regarded as vessels of wealth. A well-known adage among copper coin collectors holds that “owning an error coin brings unexpected fortune”. Error coins symbolize singularity and rare serendipity. The double-flag and grain sprig motif inherently embodies auspicious omens of national stability and bumper harvests, while the coin’s innate rotated reverse flaw stands for extraordinary luck and once-in-a-lifetime opportunities. Whether stored in collector albums or displayed in studies and tea rooms, it elevates traditional Chinese display spaces while embodying wishes of wealth and prosperity. It appeals to veteran numismatists, antique hobbyists, and collectors of feng shui artifacts alike.

This 30° rotated reverse Double-Flag coin boasts standard specifications: a 32.5-millimeter diameter and well-proportioned weight. Its multi-layered patina interweaves verdigris and russet copper oxidation, creating striking vintage aesthetic appeal. Fully raised, intact engravings cover both sides, and the 30-degree rotational offset is instantly visible to the unaided eye. When housed in an individual coin capsule or collector display album, its stark visual distinction from ordinary error-free Double-Flag coins makes it an eye-catching highlight in any numismatic collection.

As an antique copper coin with a verifiable mint error and complete period features, it is compact, easy to store, and resistant to damage, retaining full historical documentation. It can be passed down through generations as a family antique, serving dual purposes of historical education and cultural heritage preservation.

* 本次藏品：双旗币背逆（30°）错版*

典藏尺寸：重：10.6g 直径：32.5mm

以上藏品相关信息请与四川极蕴拍卖有限公司联系，我们将为您提供一对一专业服务。

For more information about this collection, please contact Sichuan Jiyun Auction Co., Ltd. We will provide you with one-on-one professional service.