How to distinguish between true and false Yuan Datou ~

1, patina identification. There is a layer of silver oxide on the surface of the silver circle handed down from ancient times, which is often called patina. The patina mainly has light black, light gray, light orange and millet shell color. With shoe polish, the patina of the wax fire barbecue is heavy black and can be recognized at a glance. Identification of patina is an effective method to identify silver rings.

2, rust color identification. Silver coins will rust if they are not stored properly after they stop circulating. The silver rust layer handed down from generation to generation is very thin and dark green. Unearthed silver rings generally have a thick rust layer, and some rust layers are raised. When two silver coins are rusted together, there are white bright spots with uneven distribution on the surface, which sparkle in the light, commonly known as "pan-silver". Pan-silver phenomenon cannot be faked.

Most of the silver rings unearthed with the burial are sauce red, and some have green rust spots. The puddle is full of green rust. The rust color of real silver wheel is the brand of history, which is difficult to get rid of. Boil with alkali, do not return. The artificial rust of fake silver rings is light green, which can be scraped off with nails and erected with needles. Boil in alkaline water for half an hour, and the rust color will be completely gone. The fake silver rust smells fishy and the tongue is sour. Rust color identification is the key to identify silver rings.

3. The lateral teeth are fake. Real coins have flat teeth, the same size, deep teeth and shallow teeth; The edges of counterfeit money are uneven, with different shades and crooked edges.

4. Weight discrimination. The weight standard of real money should be 26.86 grams, but the loss after a hundred years of circulation should also reach 26.5 grams, but it is generally 26.5~26.6 grams in Yuan Datou. Some crude counterfeit and non-silver materials are often much smaller than 26.5 grams.

Baidu Encyclopedia-Yuan Datou

People's Network-To identify the authenticity of Yuan Datou, first look at the primary colors and the original light.