民国三年袁大头

一枚小小的古钱币，蕴藏着丰富的历史元素。如今遗传在世的精品古钱币虽然并不多，但是每枚精品古币价值却是不菲。古钱币的价格是由存世量、艺术价值和历史价值判断的，而且随着市场供需关系的变化而产生不同程度的波动。
简单一句话，试铸币的制作版式，是和流通币在规格上是一样的，只是试铸币是一个标本，流通币是根据标本制作出来的钱币，总体保持一致。
试铸币存世量极少，流传到民间的更少。
试铸币就是没有进入市场使用的。其实民国试铸币就是当时从国外买过来的机器，因为次铸造，用银改为铜，用铜水冷却后机器铸压，试铸币是当时的完成品样品。是后续铸银币的对照品，整个国家这种版别才几枚到十几枚而以。机制币的制作生产，从祖模设计、工具模翻制，从铜料熔炼，到压轧铜板、制作铜饼、晃洗、退火、滚边、印花等，前后涉及到的工艺流程有十几个环节，需要不同技术工种紧密配合，可以说机制币的生产过程，就是一件艺术品的绘制过程。
A small old coin contains rich historical elements. Nowadays, although there are not many exquisite ancient coins inherited from the world, the value of each exquisite ancient coin is quite high. The price of ancient coins is judged by the stock, artistic value and historical value, and fluctuates in varying degrees with the change of the relationship between supply and demand in the market.
In a word, the format of trial coin is absolutely the same as that of currency in terms of specifications, except that the trial coin is a specimen, and the currency is made according to the specimen, which is consistent on the whole.
The trial coins are few in stock and less spread to the people.
The trial coin is not used in the market. In fact, the trial coining machine of the Republic of China was bought from abroad at that time. For the first time, silver was replaced by copper, and the machine was cooled by copper water. The trial coining was a sample of the finished product at that time. It is the reference for subsequent silver coins. The whole country has only a few to a dozen copies of this edition. There are more than ten links in the process of making machine-made coins, including ancestor design, tool moulding, copper melting, rolling copper plate, making copper cake, shaking washing, annealing, rolling, printing, etc. The process of making machine-made coins needs close cooperation of different technical types. It can be said that the process of producing machine-made coins is the process of drawing a work of art.