China's second set of coins, 1980, was issued on April 5, with denominations of 10 cents, 20 cents, 50 cents and 1 yuan respectively. They are round and toothed, made of non-ferrous metals such as copper and nickel, and have a face value of one corner, two corners and five corners. The front pattern is the national emblem of the country name, and the back pattern is the ear of wheat, face value and release year. The front pattern of one-dollar denomination is the country name, national emblem and year of issue, and the back pattern is the Great Wall of Wan Li with denomination.
Extended data
Distinguish the authenticity of a dollar coin
1. pattern: the stamens, ears of rice and national emblem of the real coin 1 yuan coin are clear, with a strong sense of concavity and convexity, and the counterfeit currency is rough and fuzzy. In addition, the positive and negative patterns of true 1 yuan coins are in the same direction, even if there is an error, it is very small; However, counterfeit money usually has different and asymmetrical patterns on the front and back.
2. Edge of the round frame: real money is even and smooth, counterfeit money is usually uneven in thickness, and the edge is cut and worn.
3, material: true 1 yuan coin is nickel-plated steel, you can use a magnet to suck it up, otherwise it must be counterfeit; In addition, many fake 1 yuan coins are made of lead or aluminum. When they are drawn on white paper, there will be traces as clear as pencil lines. Of course, some counterfeit money containing iron or lead may not be detected by this method.
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