孙中山头像中华民国开国纪念币（俗称“小孙头”或者“孙小头”）来历，至1911年底辛亥革命之后，1912年1月3日，中华民国政府成立，由于币制尚未建立，除四川改铸大汉银币，福建改铸中华元宝外，主要的造币厂，大都仍沿用前清钢模铸造银币，以供流通需要。图案采用大总统孙中山肖像，以后的通用银币再改花纹式样。孙中山令财政部行文，同意鼓铸纪念币，并命令其余的通用银币新花纹，“中间应绘五谷模型，取丰岁足民之义，垂劝农务本之规”，训令财政部速制新模，分令各省造币厂照式鼓铸。不久，财政部就颁下新模给江南(南京)、湖北、广东等造币厂依式铸造，这就是“中华民国孙中山像开国纪念币”的由来。
中华民国开国纪念币是近代中国钱币中的精品，有着历史熏陶，是价值很高的革命文物，具有深远的历史纪念意义；同时，还是考古和研究中国历史文化难得的实物。 珍贵的中华民国“开国纪念币”记录了辛亥革命惊天动地的伟大历史，由于历经百年风雨，“开国纪念币”存世量极为稀少，尤其是品相好的更为稀缺，因此很受收藏爱好者青睐。
孙中山开国纪念币
据考究寓意注解： 隶书“民”→流行将「民」字最后一划拉长，其解释为推翻满清，象征民主胜利(人民出头)，也宣示乃大众的政府。 梅花→左右五瓣梅花各一支，五权宪法意者也。后即以此为国花（五权指：立法权、司法权、行政权、弹劾权和考试权）。 豆、麦穗→民国元年三月二日，孙中山颁布临时大总统令，对新造货币式样作了规定《拟另刊新模，鼓铸纪念币，…其余通用新币，中间应绘五谷模型，取丰岁足民之义，垂劝农务本之规》五谷指：稻、黍（即黄米）、稷（即谷子）、麦、菽（即豆）。 三叶→背，中间壹圆二字，而辅以嘉禾各一支，每支一穗三叶，三民主义意也（三民主义主要包括民族主义、民权主义和民生主义）。
孙中山头像中华民国开国纪念币银元，正面中央为孙中山侧面肖像，边缘内上镌中文隶书体“中华民国”4字、下镌“开国纪念币”5字、左右长枝花饰。背面中央为中文隶书体“壹圆”及嘉禾，边缘英文“中华民国”、“壹圆”，左右分列五角星(后改为六角星)。直线边齿，成色89%，俗称“小头”。该币作为中华民国国币发行。中华民国孙像开国纪念币银元，由于铸造厂家不一，铸造年代不同，雕刻师英语水平不高，除正背面主要图案未变外，其花饰细节、英文字母均有变异，特别是英文字母差错较多。这就形成了该币的多种版别。传世较广的主要有两种：一种是五角星版式，一种是六角星版式。
这枚银币是罕见的六星版，孙中山被称为国父，开国纪念币是2000多年封建王朝转变为民主社会的第一见证货币，我们称它为六星孙小头，也叫它为国父币，更是‘藏头’中的一绝，藏住了民国的开端，见证了封建王朝的覆灭，由以前的龙纹，自诩为真龙天子的家族政权，演变为以民为主社会，这枚开国纪念币历史研究价值非常，收藏价值极高，是收藏界里宠儿。
墨西哥银圆，又叫做“墨银”或“鹰洋”，后讹为“英洋”。是指1821年墨西哥独立后使用的新铸币，它是从1823年开始铸造的。鹰洋大体分为两种，1897年以前的花边鹰洋和 1898年以后的直边鹰洋。晚清民国年间，外国银元输入中国者，属墨西哥鹰洋最多。据清朝宣统二年（1910）度支部调查统计，当时中国所流通的外国银元约有十一亿枚，其中有三分之一是墨西哥鹰洋。
鹰洋大体分为两种，1897年以前的花边鹰洋和1898年以后的直边鹰洋。两者规格相同：直径39毫米，重量27.07克，成色95.30%。花边鹰洋面值为8瑞尔(Real)，直边鹰洋面值为1比索(Peso)。银元正面是一展翅雄鹰，嘴叼长蛇（花边鹰洋蛇尾与鹰翅相连，直边鹰洋蛇尾与鹰翅不相连），单腿立在仙人掌（国花）上，边缘上方书西班牙文“REPUBLIKAMEXIKANA(墨西哥共和国)。背面中央为一顶
自由软帽。帽檐书有西班牙文“LIBERTAD(自由)”字样。帽周围放射长短不一的光柱（花边鹰洋与直边鹰洋光柱数也不相同，花边鹰洋自由帽顶部的3支光柱中间一支较短，直边鹰洋中间一支较长。图案象征着力量、忠诚、和平和自由。
墨西哥鹰洋
正面：钱币中心的自由帽上英文：LIBERTAD（自由）,10D.20G意为含纯银20克,
此枚墨西哥鹰洋，包浆自然，且压力十足是开门包老的真品钱币，1893年历经了上百年的时间，依然是品相精美，没有磕缺，损毁，变形，是不可多得的收藏级银币，极具收藏价值。
反面：这枚墨西哥鹰洋，鹰姿飒爽，而老鹰是墨西哥的国徽图案为一只嘴里叼着蛇的雄鹰伫立在仙人掌上，它也是墨西哥的国鸟，周圈环绕英文：REPUBLICA MEXICANAREPUBLICA MEXICANA墨西哥共和国,整体字迹清晰，图案精美。
这枚钱币包浆自然，底光柔和，所谓包浆是自然形成的氧化层，也有人为手盘包浆，两者不同，但同时都有保护钱币的功能，有如给钱币镀上一层保护膜，使钱币不再氧化，便于收藏传世，如果觉得钱币脏，可以用清水洗，再用棉布擦干，不要破坏包浆，破坏了包浆就相当于破坏了保护层，更重要的是包浆是鉴定新老钱币最简单有效的方法。细看这枚钱币品相完美，没有磕缺，损毁，变形等是不可多得的收藏级钱币，建议收藏，传世。
英文翻译：Sun yat-sen, head of the republic of China the founding COINS (commonly known as "note" or "little sun") origin, after the end of 1911 the revolution, on January 3, 1912, the government of the republic of China was founded, because of the monetary system has not yet been established, in addition to remold the big fellow of sichuan silver COINS, outside fujian remold the wing, the main mint, mostly still continue to use the clearance die casting silver COINS, For circulation purposes. The pattern uses the portrait of the great President Sun Yat-sen, and then the general silver coin will change the pattern. Sun Yat-sen ordered the Ministry of Finance to issue an article agreeing to drum casting commemorative coins, and ordered the rest of the general silver coins to have a new pattern, "the middle should be painted with a grain model, take the righteousness of the rich old and full people, try to persuade the rules of agriculture", instructed the Ministry of Finance to make a new mold quickly, and ordered provincial mints to cast according to the drum. Soon, the Ministry of Finance issued a new mold to the mint in Jiangnan (Nanjing), Hubei, Guangdong and other provinces. This is the origin of the "founding commemorative coin of Sun Yat-sen in the Republic of China".
The commemorative coin of the founding of the Republic of China is a fine coin in modern China. It has historical edification, is a highly valuable revolutionary cultural relic, and has profound historical significance. At the same time, or archaeology and the study of Chinese history and culture rare object. The precious "founding commemorative coin" of the Republic of China records the earth-shaking great history of the Revolution of 1911. Due to the hundred years of wind and rain, the "founding commemorative coin" is very rare in the world, especially the good quality is more scarce, so it is very popular with collectors.
Sun Yat-sen's founding commemorative coin
According to the study of moral notes: official script "people" → popular "people" the last stroke of the long, its interpretation of the overthrow of the Manchu Dynasty, a symbol of the victory of democracy (the people head), also declared is the government of the masses. Plum blossom → about five petals of plum blossom each, five power constitutional meaning is also. After that, it is the national flower (five powers: legislative power, judicial power, executive power, impeachment power and examination power). Beans, wheat and first year of the republic of China on March 2, Dr. Sun yat-sen interim executive order, issued by the new currency style made regulations "to another issue of the new mould, casting COINS, drum... the rest of the general new, intermediate should draw the grain model, from the meaning of feng, sufficient, vertical to the complex rules of grain: rice, millet (i.e. yellow rice), millet (millet) and wheat, glycine (pea). Three leaves → back, middle one circle two characters, and supplemented with Jiahe each one, each one ear three leaves, the three people's principles meaning (the three people's principles mainly include nationalism, civil rights and people's livelihood doctrine).
Sun Yat-sen's head is the founding commemorative coin of the Republic of China silver dollar. In the center of the front is the profile portrait of Sun Yat-sen. On the edge, there are 4 characters of "Republic of China" in Chinese official script, 5 characters of "founding commemorative coin" and long flowers on the left and right sides. On the back of the center is the Chinese official script "one circle" and Jiahe, the edge of the English "Republic of China", "one circle", the left and right respectively five-pointed star (later changed to six-pointed star). Straight edge teeth, color 89%, commonly known as "small head". The currency is issued as the national currency of the Republic of China. The silver dollar, the commemorative coin of the founding of the Republic of China, is not the same as the foundry manufacturer, the casting time is different, and the English level of the engravers is not high. In addition to the main pattern on the front and back, the floral details and English letters have variations, especially the English letters have more errors. This creates a variety of editions of the coin. There are two kinds of widely handed down: one is the five-pointed star format, one is the six-pointed star format.
Six star version of this coin is a rare, sun yat-sen was known as the father of the nation, the founding COINS is 2000 years of feudal dynasty into a democratic society the first witness currency, we call it six star sun small head, also called father for money, it is "orz" in a special skill, hide the beginning of the republic of China, witnessed the demise of the feudal dynasty, the dragon, The self-proclaimed family regime of the dragon Son of Heaven has evolved into a society dominated by the people. This founding commemorative coin has a very high historical research value and a very high collection value, and it is the favorite in the collection circle.
Mexican silver, also known as "ink silver" or "eagle ocean", later misrepresented as "British ocean". It refers to the new coinage used after the independence of Mexico in 1821. It was minted from 1823. There are generally two types of eagle Ocean, the lace eagle Ocean before 1897 and the straight edge Eagle Ocean after 1898. During the late Qing Dynasty and the Republic of China, the foreign silver dollar was imported into China from Mexico. According to the survey of the branch in the second year of Xuantong (1910) of the Qing Dynasty, there were about 1.1 billion foreign silver dollars in circulation in China at that time, and one third of them were Mexican eagles.
There are generally two types of eagle Ocean, the lace eagle Ocean before 1897 and the straight edge Eagle Ocean after 1898. Both specifications are the same: diameter 39 mm, weight 27.07 grams, color 95.30%. The lacy eagle has a face value of 8 riels (Real) and the straight-edged eagle has a face value of 1 Peso (Peso). On the front of the silver dollar is a winged eagle with a long snake in its beak (the lacy eagle's tail is attached to the eagle's wings, the straight eagle's tail is not attached to the eagle's wings), standing on one leg on a cactus (national flower), with the Spanish words "REPUBLIKAMEXIKANA(Republic of Mexico)" written above the edge. The back of the center for a top
Free floppy hat. The brim book has the word "LIBERTAD" in Spanish. Cap around the radiation of different lengths of light column (lace eagle and straight edge eagle light column number is not the same, lace eagle free cap top 3 light column in the middle of a shorter, straight edge eagle ocean in the middle of a longer. The design symbolizes strength, loyalty, peace and freedom.
Mexican eagle ocean
Front side: on the free cap in the center of the coin: LIBERTAD (freedom), 10D.20g means 20 grams of sterling silver,
This Mexican eagle, naturally wrapped, and full of pressure is the old real coin of the door bag. In 1893, after hundreds of years, it is still beautiful in appearance, without being knocked, damaged or deformed. It is a rare collectible silver coin, with great collection value.
The eagle is the national emblem of Mexico. It shows an eagle with a snake in its mouth standing on a cactus. It is also the national bird of Mexico, surrounded by English: REPUBLICA MEXICANAREPUBLICA MEXICANA.
This coin patina nature, the bottom light is downy, so-called wrapped slurry is a natural formation of the oxide layer, also some people to hand wrapped slurry, the two different, but at the same time have to protect the function of money, like a plated coin on a layer of protective film, make money no longer oxidation, facilitate collection handed down from ancient times, if feel money is dirty, can wash, reoccupy cloth wipe, do not destroy the wrapped slurry, The destruction of the coating is equivalent to the destruction of the protective layer, and more importantly, the coating is the most simple and effective method to identify the new and old coins. A close look at this coin is perfect in appearance, without being knocked, damaged or deformed. It is a rare collectible coin. It is recommended to collect and pass down from generation to generation.
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