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The password is inconsistent
A postcard is a card containing information that can be sent without an envelope and be affixed with a stamp. The front side is in the form of an envelope, and the back side has the function of letterhead. The advantage is that there is no envelope, and the disadvantage is that the space is small and there is no confidentiality. What are the types of postcards?
With large coverage and strong scientificity, postcard collectors collect and sort according to this method, and the compilation of the postcard directory also determines the style accordingly. According to this classification, there are commemorative postage films, special postage films, New Year postage films, tourist scenery postage films, Christmas postage films, attached postage films, military postcards, ordinary postage films, air postage films, pipeline postage films, special postage films, etc. Among them, there are many kinds of special postcards, such as postage cards issued by China, such as Hope Project, consulting, seeking medical advice, and echo cards; In foreign countries, there are special stamps for government agencies, official business, parcels, address changes, radio guessing prizes, job introductions, postal savings, and unified commodity ordering.
The design form of postcards can attract people's attention and arouse the interest of collectors at all levels. Such as art postcards, book-style postcards, and advertising postcards. Nonpaper postage cards, such as plastic pressed stereo picture postcards, wooden postcards, etc.
There are local postage chips, foreign postage chips, international aviation, stamped value change, free postage, sold postage chips, etc.
