1911年辛亥革命胜利后，清帝退位，中华民国成立。中国民主主义革命的先驱者孙中山就任中华民国临时大总统，并在颁布的"临时大总统令"中提出要"另刊新模，鼓铸纪念币"，随后武昌和南京两处造币厂率先铸行了 "中华民国开国纪念币"铜元辅币，以十文面值的为主，在全国大量发行以取代清朝铜元。这就是"中华民国开国纪念币" 铜元的由来。无庸置疑，这种铜元的币名很明确，就是"中华民国开国纪念币"。据此我们应该把此币最能区别于前朝铜元,并具有鲜明的划时代革命和进步意义的有"中华民国开国纪念币"(以下简称开国纪念币)字样的一面称为面，而把其对应记值的另一面称为背。

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此枚中华民国开国纪念币二十文，直径3,2Cm，重量10,8克。钱币正面上书“中华民国”四字，下环铸“开国纪念币”五字。两面旗帜交叉而立，中间图案为“十八星铁血旗”和“五色国旗”。双旗寓意全国一统与民族大团结。钱币背面外圈环绕英文，中间竖写“二十文”币值，两边为嘉禾纹。此钱币形制规整，铜质精纯，在历经岁月之后至今虽尽显斑驳古意，但仍不失熠熠光彩，其铸工精湛，该钱币整体色泽呈褐红色，其字体笔法流畅，纹饰刻制工细，边齿分明排列规则，深浅适度，颇有艺术造诣。此枚钱币保存好，包浆浑厚，流通使用痕迹明显，钱币上面的图文至今仍然清晰可见，乃当时造币量较少的一种品种，极具收藏价值。

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比近两年不断火热的国内艺术品市场行情，今年钱币交易显然要活跃很多，各板块精品迭出，精彩依旧。珍稀钱币成交价稳步提高，尤其是明清民国钱币异军突起，因存量稀少受到全球藏家青睐，成为钱币交易市场一个新的热点。经过这几年的钱币市场酝酿，以机制币为主的钱币交易市场正在悄然升温。特别是沿海城市及内地市场掀起一场铜币投资热。铜元是钱币收藏大类，不同版别的铜元都有其独特的韵味，值得投资者们细细品味。在古币的市场交易中，双旗铜币更是备受青睐。

一个钱币，往往承载着同时期的历史文化。历史价值大，文化价值高，那么这个钱币的收藏价值也随之增长。近年来，随着我们国家钱币收藏投资行业的不断发展和进步，钱币收藏也逐渐成为了人们收藏的一款热选品种。从清代以及民国钱币的整体价格走势上我们不难看出，当下中华民国开国纪念币这些钱币的价格，仍有非常大的增长空间。尤其是此枚双旗币（铜币），存世数量稀少，其收藏和升值空间不可限量。

英文翻译：

After the victory of the 1911 Revolution, Emperor Qing abdicated and the Republic of China was founded. China's democratic revolution pioneer sun yat-sen as the provisional President of the republic of China, and in "temporary big presidential decree" issued to "another issue of the new mould, drum casting COINS", then the wuchang and nanjing mint in two places first cast line "of" the founding of the republic of China marks the copper coin COINS, give priority to with the face value of 10, issue instead of the qing dynasty copper coin in the country. This is the origin of the "founding coin of the Republic of China" copper. Undoubtedly, the name of this copper coin is very clear, is "the founding of the Republic of China commemorative coin." Accordingly, we should put this coin can be most different from the previous copper dollar, and has a distinct epoch-making revolution and progressive significance of "the founding of the Republic of China commemorative coin "(hereinafter referred to as the founding coin) words on one side called the face, and the other side of its corresponding value called the back.

This commemorative coin of the founding of the Republic of China has a diameter of 3,2Cm and a weight of 10,8 grams. On the front of the coin is the four words "Republic of China", and the five words "founding coin" are cast in the ring. The two flags stand intersected with the "18-star flag of iron and blood" and the "five-color national flag" in the middle. The double flags symbolize national unity and national unity. On the back of the coin, the outer ring is surrounded by English. In the middle, the value of "20 articles" is written vertically. Both sides are Jiahe grain. The coin is neat in shape and pure in copper. Although it shows mottled ancient meaning after years, it still does not lose its shining luster. Its caster is exquisite, the overall color of the coin is maroon, its font is smooth, grain carving is fine, edge teeth clear arrangement rules, moderate in depth, and quite artistic. This coin is well preserved, the package pulp is thick, and the traces of circulation and use are obvious. The text and text on the coin is still clearly visible today. It is a kind of breed with less coinage at that time, and it has great collection value.

Compared with the hot domestic art market in the past two years, this year's coin trading is obviously a lot more active, each plate is one after another, wonderful as before. The transaction price of rare coins has steadily increased, especially the coins of the Ming and Qing Dynasties and the Republic of China, which are favored by global collectors because of the scarce stock and become a new hot spot in the coin trading market. After the brewing of the coin market in the past few years, the coin trading market based on the mechanism coin is heating up quietly. In particular, coastal cities and inland markets set off a copper coin investment fever. Copper dollar is a large category of coin collection. Different types of copper dollar have their unique flavor, which is worth savoring by investors. In the market trading of ancient coins, double-flag copper coins are more popular.

A coin often carries the history and culture of the same period. With large historical value and high cultural value, the collection value of this coin will also increase. In recent years, with the continuous development and progress of our national coin collection and investment industry, coin collection has gradually become a hot choice for people to collect. From the overall price trend of the Qing Dynasty and the coins of the Republic of China, it is not difficult to see that the current price of the coins commemorating the founding of the Republic of China still has a very large room for growth. In particular, this double flag coin (copper coin), the number of existence is rare, its collection and appreciation space is unlimited.