Ordinary stamps:
Ordinary stamps are the oldest and most common types of stamps. Buying ordinary stamps is a way to pay postage. Ordinary stamps have complete face value, large circulation, small ticket size and relatively fixed pattern. Often printed many times, there are many kinds.
Commemorative stamps:
Commemorative stamps are special stamps issued for an event or occasion. Peru issued the world's first commemorative stamp at 187 1, and opened the first highway between Lima and callao, after which countries all over the world followed suit. Many countries regard commemorative stamps as a kind of self-advertisement. Especially in some small countries, commemorative stamps have become one of their own financial sources (but sometimes they may also have propaganda purposes, such as the first commemorative stamp in Germany appeared in the Nazi era. Commemorative stamps are mainly for collectors because they are basically not used on envelopes. Therefore, compared with long-term stamps, letters with commemorative stamps are rare. Commemorative stamps usually have a large ticket size, exquisite design and printing, rich patterns, and are not allowed to be reprinted, and there is a specific sale period.
Special stamps:
Stamps issued to promote specific things, as long as they are not ordinary stamps and commemorative stamps, basically belong to this category, and the scope is wider than commemorative stamps.
Welfare stamps:
Also known as donation stamps, stamps are issued for welfare, health, disaster relief, charity and other undertakings. Its face value is divided into two parts, one is the postage itself, and the other is the donation amount. The earliest stamp donated in the world is the 1p stamp issued by New South Wales, Australia in 1897. Its price is 12 times higher than the face value of the stamp, and the excess is used for donation.
Airmail stamps:
Airmail stamps are suitable for airmail, so they are also called airmail stamps. But they can only be used for airmail, and airmail stamps cannot be used for ordinary mail. Since the mid-20th century, airmail has become one of the most important modes of postal transportation, and most countries in the world will issue their own airmail stamps. Tickets are usually balloons, pigeons or planes. Germany and Switzerland launched the first airmail stamp in 19 12. Austria issued the first airmail stamp on March 30th, 2008. 1965438 During World War I, most European countries abolished airmail stamps after World War II. Now ordinary stamps can be used for airmail.