How to identify the authenticity of stamps?

Stamp collectors should learn more about stamp collecting and improve the level of identifying the authenticity of stamps, which can not only avoid economic losses, but also help to collect stamps with higher value.

To identify stamps, we must first fully understand the common sense of stamps, as well as the professional knowledge, anecdotes and history of stamp collecting, carefully observe and ponder the mystery, accumulate experience and increase knowledge in practice, and don't trust stamps of unknown origin. Secondly, we should be familiar with the general identification methods: correctly distinguish the difference between reprinted tickets and original tickets to avoid misjudgment. In general, printing factory, plate making, pattern, handwriting, color, convex and concave surface, paper quality and other aspects are the basis for judgment, so we should pay full attention to those stamps with similar patterns, different versions or numbers, and it is best to refer to relevant information and collected literature for identification; Some precious stamps in the early days of various countries are often stamped with the postman's seal on the back, which correctly distinguishes the "flower paper head" stamp map. This kind of stamp has irregular perforation, no glue or unevenness. The paper is colored paper such as white paper or wax paper pattern, and some even ordinary printing paper. Sometimes, stamps issued by different countries or regions are printed on the same paper, or even on the same paper, and most of them are cancelled. Careful observation shows that the postmark is printed with the design, and the content is mostly "special topic". Some stamps pretend to be the world famous paintings, and there are vulgar nude paintings. The countries or regions printed on the stamps are very strange. This kind of stamp is called "dirty ticket" in Hong Kong and Macao and "doll paper" in Guangdong, so you must buy it.

Careful observation shows that some stamps have relatively uniform tooth hole tips, asymmetrical tooth pitch and tooth hole arrangement, smooth tooth tips and no fluff left by tearing. This perforation was forged by a forger by hand. The defective products caused by printing errors are called variant tickets, which should have been destroyed long ago. However, due to various reasons, variant tickets have been scattered among the people in various countries, so this kind of tickets has a very high collection value. So some people forged variant tickets, used chemical reagents to make a pattern on stamps fade or change color, or imitated printing errors. Some people use stamps from color magazines to draw forged stamps, which makes it more difficult to distinguish the authenticity. What's more, fake stamps are copied by a color copier. Stamp collectors don't have to worry, because stamp paper has been listed as a specialty, and it can't be fake after all. As long as you carefully observe and compare, you can definitely see the flaws of this fake stamp.