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This is to make it easier to tear off the stamp. It is said that in the past, stamps did not have perforations, and when stamps, they had to be cut one by one with scissors, which was very inconvenient. Later, when a man wanted to send a letter, because he didn't have scissors, he used a pin in his suit tie to pierce rows of small holes in the middle of the stamp, and soon tore the stamp open.
This discovery was rewarded by the British Postal Service. In 1854, Britain was the first to issue stamps with perforations, and since then, stamps from various countries have also been perforated.
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The perforations of stamps are for ease of tearing and have no other purpose. However, due to the different punching methods, punching effects and hole shapes, the perforations of stamps are also diverse, even if the same stamp, the perforations are different, which has aroused widespread interest among stamp collectors.
The allusion is as follows: the earliest stamps did not have perforations, and it was very inconvenient to cut them one by one. In 1848, Irishman Henry Yatzel invented the punching machine.
Later, a man wanted to send a letter, and because he didn't have scissors, he used a pin in his suit tie to pierce rows of small holes between the stamps, and the stamps were quickly torn open. This discovery was rewarded by the British Postal Service.
On January 28, 1854, the United Kingdom first invented the perforated stamp. Up to now, the stamps issued by countries around the world are basically perforated, and a small number of toothless stamps are also specially issued to enhance the interest of stamp collectors, such as the toothless stamps issued by China "Mei Lanfang Stage Art".
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Because the stamps are printed board by board, this is to make it easier to tear the stamps.
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Summary. Reason: Some printed stamps are superficially similar to genuine stamps because they are reproduced by photographic technology, with denominations, perforations, and even postal postmarks.
In order to prevent people with ulterior motives from making false profits, the International Postal Union has hereby stipulated that all printed matter with a stamp design must be printed with a diagonal black line in the lower right corner of the printed stamp design (printed) as a distinguishing feature from the genuine stamp. Therefore, all the suspected stamps with a diagonal black line in the lower right corner are basically cut by counterfeiters from philatelic publications, commemorative sheets and other printed materials.
Kiss It's not a real stamp anymore.
Reason: Some printed stamps are superficially similar to genuine stamps because they are reprinted by photographic technology, with denominations, perforations, and even postal postmarks. In order to prevent people with ulterior motives from making false profits, the International Postal Union has hereby stipulated that all printed matter with a stamp design must be printed with a diagonal black line in the lower right corner of the printed stamp design (printed) as a distinguishing feature from the genuine stamp.
Therefore, all the stamps that are suspected to have an oblique black line in the lower right corner of the stamps are basically cut by counterfeiters from philatelic publications, commemorative sheets and other printed materials.
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Summary. A stamp marked "perforation 14 degrees" means that it has 14 holes every 2 centimeters on its four sides; A stamp marked "perforation 15 4 degrees" means that it has 15 holes per centimeter on the upper and lower edges, and 14 holes every 2 centimeters on both sides.
A stamp marked "14 degrees before the perforation is raised" means that there are 14 holes every 2 centimeters on its four sides; A stamp marked "15 4 degrees of tooth holes" means that there are 15 holes per centimeter on the upper and lower edges of the front and 14 holes per 2 centimeters on both sides of the stamp.
It's time here, and the perforations are counted.
Congenital blind teeth, tear badly will lack teeth or weak teeth, early stamps due to the paper, tear after the tooth edge is very rough, this is normal. The ruler Zen argument is like a mausoleum, and the lack of fruit is not evenly arranged, that is, a fake.
There are also congenital ones.
There are also congenital blind teeth.
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First, perforation: including tooth shape, punching method and perforation degree. The real stamp tooth beam key shape has a big article, the punching equipment of the stamp printing factory has strict process standards, and regular fixed-point maintenance, update, the shape of the perforation is regular, smooth and smooth.
The counterfeiter cannot have the same technical conditions, so he can only make do, and it can be seen by visual inspection that some counterfeit tickets are similar to triangular perforations, showing grooved and polygonal toothed slag holes under magnifying glass. Punching methods include wired, flat, comb, rolling hole limb slag quietly, etc. When you notice that the stamps are not issued very early and the perforations on the four sides are irregular, you should pay more attention.
The thickness and spacing of the needles on the punch vary widely, resulting in a variety of perforation degrees. The international philatelic community uses a length of 20 mm as a unit, and the number of perforations in this length is the perforation degree, which is measured to 1 4 holes. Counterfeit clumsy stamps, even the teeth of the four sides are not the same.
Of course, genuine stamps occasionally have toothing errors, which are inconsistent with the toothing data on the catalog, but this error is regular.
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1.Cutting and tearing. 2.So.
4.Helpless and puzzled.
5.Henri Achar invented the stamp punch when he saw a small hole in a stamp that an outsider had borrowed from him.
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Children, it's not right to do homework like this, summarize it yourself, even if it's wrong, it's your own experience.
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One day in 1848, the British inventor Archer went to a tavern in London for a drink. Next to the inventor, a gentleman holds a large stamp in his left hand and flips something on his body with his right hand. Apparently, he was looking for a knife to cut stamps.
The gentleman searched all the pockets of his body and did not find a knife, so he had to ask Archer for help: "Sir, do you have a knife?" Archer shook his head and said, "I'm sorry, I didn't bring it either."
The man thought about it, took a pin from his suit tie and pierced a small hole in the connection of each stamp, and the stamp was easily torn open, and it was torn neatly.
Archer was captivated by the man's actions. He thought: Wouldn't it be great if there was a machine that could punch stamps?
Archer began his research work. Soon, the stamp punch was made. The entire stamp with it punched through is easy to tear one by one, which is very convenient when using it.
The British postal service immediately adopted such a machine. Until now, stamp punching machines are still used all over the world.
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Englishman Henry Archer. He started by using a perforator with tiny knife rows that could be used to make equidistant incisions between two stamps. The world's first stamp produced in this way appeared in 1848.
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