(This is a secret ballot, you can rest assured to vote, see how your eyesight is) This article tests everyone's eyesight, because now the box coin incident is boiling, a slap does not sound, we are also too trusting of the box coin, save the eyesight and brainpower, less fun of exploration, over time, it has become dependent on the box coin; for the naked coin to distinguish the authenticity of the ability we have to improve, so today share a few groups of coins, let everyone distinguish the authenticity, start:
The first one: Jing Kang Tongbao
Its data is (41.07 ~ 41.40) * (1.72 ~ 2.17) mm, weight: 12.66g; in the first year of Jing kang (1126), the Jin army attacked the capital (present-day Kaifeng), the following year the Northern Song Dynasty fell, Jing Kang qian only minted for one year and stopped, so the amount of minting is very small, but its layout is complicated. Tongbao money is more rare than Yuanbao money, and it is easy to get two folds, and Xiaoping is rare. Looking at several types of Jingkang's books, the breath is connected, such as the hand of a person, and the seal book is novel and superb, which can be called the crown of the seal book. The scarcity of Jingkang money has been favored by the money circles of successive dynasties, not surprisingly, but because of its rarity. So is the following one real or fake?

The second one: Xianfeng Tong Baby Spring sample
Its data is: (27.65 ~ 27.71) * (1.74 ~ 1.85) mm, this diameter is really rare in the Small Flat sample, Xianfeng big money is the collection of hard-hit areas, Xianfeng Xiaoping money is broken and no one wants, but Xianfeng Xiaoping mother money is still very popular, the following is true or false?
The third one: get one yuan treasure
Its data is: (33.77 ~ 33.81) * (2.54 ~ 2.59) mm, weighing 14.3g, deyi yuanbao and Shuntian yuanbao are two coins that witness the chaos of Anshi, there is a saying called: "Shuntian is easy to get, it is difficult to get one", deyi yuanbao coin copper color is redder, the back of the money is more seen with moon patterns, and the shape of the Shuntian yuanbao coin is the same as that of deyi qian, but the body of the money is slightly heavier. The minting of Shuntian coins is only more than one year, and the time to get one coin is even shorter, so the number of their casting lines is not much. Is the following one real or fake?
The fourth one: The Treasure of Tiance House
Its data is: diameter: 42.2mm * 4.7mm, weight 39.3g, five generations and ten kingdoms of Chu King Ma Yin commemorated the opening of the house to create, the name of the ancient spring, Ma Yin's monetary policy was very successful at that time, and rare in history. The coins minted during Ma Yin's reign were very unique: first, to commemorate the founding of the palace, to use the mansion as money, to make a name for the world, Tiance money is the first coinage of face wen jidi money after the Qin Dynasty; second, it can be called the originator of the calligraphy into the Qianwen, and it has the merit of pushing the tide of the arrival of the Song Qian calligraphy; the third is that this money is exquisitely minted, the shape is thick, and the book body is majestic, so the Treasure of Tiance House has always been loved by collectors and is extremely precious.
After you vote, you can answer the answer at the end of the article, now the collection is all thunder, I don't know if you have such a discovery, what is the fire for a certain period, but the more likely that variety is to appear and then more and more, and then the flame is small, the coin is rare, such as the Chongning Tongbao for a while, the major live broadcast rooms and auctions are Chongning Tongbao, everyone should not blindly follow the trend, follow the trend will not only speculate on the market, but also mislead their own collection direction;
Antique city stalls, housing fairs, exchange meetings, etc. will have counterfeit money, confuse our eyes, a little inattention is easy to hook, remember the first two years of their own exchange meeting bought three coins, are still fake, or the market price, hey, sad urge! It is said not to be greedy, not greedy and cheap are pitted, I believe that everyone has also paid tuition, or how can we improve in our eyes?
Today for everyone to share here, the answer is the information in the following figure, let's see, are not cheap imitations, such coins themselves will be collected?