中国是使用金属货币最早的国家，而金属货币中，历代又以铜币为主。中国在殷周时期固以齿贝为货币，后因真贝不够，乃用仿制品铜贝代之，铜贝是向金属货币过渡的形态。
China was the first country to use metal money, among which copper coins were the main currency in the past dynasties. In the Yin and Zhou Dynasties, The Chinese fixed shellfish as the currency, but later because of the shortage of real shellfish, they replaced it with imitation copper shellfish, which was the transition form to metal currency.
我国铜元诞生于1889年，是我国钱币史上称谓“机制币”的开始。铜元中间无孔，是仿照香港铜辅币铸造而成的；因此外观与历代的方孔铜钱不同。铜元的诞生，标志着我国金属货币铸造工艺从传统的手工翻砂铸造进入了先进的机器化生产的新阶段。
Chinese copper coin was born in 1889, which is the beginning of the appellation "mechanism coin" in Chinese coin history. The copper coin has no hole in the middle and is cast after the copper coin of Hong Kong. So the appearance is different from the square - hole copper coins in past dynasties. The birth of copper coins marks that China's metal currency casting technology has entered a new stage of advanced machine production from the traditional manual foundry casting.
民国成立后，铜元仍继续大量流通使用。1914年，铜元正式改称“铜币”，民国发行的铜币与清代钱币最大的区别是龙纹被换成了由稻穗组成的嘉禾纹，这在我国货币的历史长河中，仅是十分短暂的一个时期。
After the establishment of the Republic of China, copper coins continued to be widely circulated and used. In 1914, the copper yuan was officially renamed as "copper coin". The biggest difference between the copper coins issued in the Republic of China and those issued in the Qing Dynasty was that the dragon grain was replaced by the golden grain composed of rice ears, which was only a very short period in the long history of Chinese currency.
此枚湖南省造双旗币，民国时期铜元，是机器铸造的现代化货币，币面设计独特。钱币正面圈内镌交叉五色旗与铁血十八星旗，圈外上环书“湖南省造”四字，下环为钱币币值“当制钱二十文”。
This double flag coin of Hunan province, a bronze coin of the Republic of China, is a modern machine-made currency with a unique design. Coin inside the front ring engraved cross five-color flag and iron blood 18 star flag, outside the ring on the book "Hunan province to make" four words, under the ring for the coin value "when making twenty words".
此币背面圈外为英文字样“TWENTY CASH”和“THE REPUBLIG OF CHINA”，内圈则铸有枝叶繁茂的嘉禾稻穗纹，寓意“家和”，寓意国家注重农桑和百姓生活，画面造型极为和谐。此钱币整体色泽古沉，其字体笔法流畅，纹饰雕刻精致，边齿分明排列规则，深浅适度。
THE words "TWENTY CASH" and "THE REPUBLIG OF CHINA" are written on THE back and THE outer circle OF this coin, while THE inner circle has THE grain OF golden rice with luxuriant branches and leaves, which means "family harmony" and THE state pays attention to THE life OF farmers and mulberry trees and THE common people. THE shape OF THE picture is extremely harmonious. The overall color of this coin is ancient and heavy, its font is smooth, delicate carving, edge teeth clearly arranged rules, moderate depth.
细看币面老化磨损程度自然，铜制质古韵熟旧，包浆醇厚，字口纹饰冲压力度适中，品相完好，虽然历经沧桑，但纹路依然隐约可见。
Look at the aging of the currency natural wear degree, copper quality antique old, mellow paste, word mouth decorative stamping force is moderate, good appearance, although the vicissitudes of life, but the lines are still faintly visible.
双旗币不仅仅具有纪念中华民国的建立意义，同时也作为流通币运用。此枚铜币现存世量不多，具有很高的收藏和投资价值，其见证了其历史年代的沉积，不难看出它明显的历史过渡性特征，该铜币历经沧桑，有着难以言表的收藏投资价值。
The double flag coin not only commemorates the establishment of the Republic of China, but also is used as circulation currency. This copper coin is rare in existence and has a high value for collection and investment. It has witnessed the deposition of its historical period, and it is not difficult to see its obvious characteristics of historical transition. This copper coin has gone through many vicissitudes and has an indescribable value for collection and investment.
湖南双旗二十文的几种大版别主要是看双旗上面的花来区别，分有：旗上菊花、旗上五星、旗上梅花、旗上兰花和旗上菱形花。
Hunan double flag of several different editions mainly look at the flowers on the double flag, divided into: flags on chrysanthemums, flags on five stars, flags on plum blossom, flags on orchids and flags diamond flowers.
此类铜币普通流通的都是当十文的，二十文的只发行了22000枚，民国在中国历史上仅仅存在了几十年时间，能保留下来的钱币更是少了。上面的绿锈也见证了其历史年代的沉积，不难看出它明显的历史过渡性特征。
Such copper coins are generally circulated in the form of ten coins, and only 22,000 pieces of twenty coins have been issued. The Republic of China only existed for a few decades in Chinese history, and the number of coins that can be retained is even less. The green rust above also witnessed the deposition of its historical age, and it is not difficult to see its obvious historical transitional characteristics.
民国发行的双旗币，作为中国铜币中的盛名誉品，是民国时期政治、经济、文化艺术状况的反映，因此它的价值被越来越多的人所发现，也被越来越多的人所收藏，高价双旗币在拍卖会上发展惊人。据了解，双旗币整体行情走势呈上涨趋势，前景极其可观，一片明朗。
The double flag coin issued by the Republic of China, as the high reputation among Chinese copper coins, reflected the political, economic, cultural and artistic conditions of the Republic of China, so its value was discovered by more and more people, and was also collected by more and more people. The high-priced double flag coin developed surprisingly in the auction. It is understood that the overall trend of the double flag currency rising trend, the outlook is very considerable, a clear.