1. Commemorative Postage Prepaid FilmNo. JP
2. Special postage film,No. TP
3. Scenery postal films, numbered YP and FP.
4. extreme postcard, number: MC
5. Ordinary postage postcards, numbered DP and PP.
6.ZP special postage postcard
7. Postcards with New Year prizes and postage, numbered HP.
8. Double-sided postage postcards, generally ordinary postage postcards, are issued in duplicate.
Here, I want to focus on the extreme postcards. "Extreme Postcard" is to stick a stamp coordinated with its theme on one side of the landscape postcard, and affix a postmark coordinated with tickets, movies or themes on its riding seam, thus forming an organic unity of tickets, movies and stamps.
Postcards can be divided into package and non-package. Generally, non-donated postcards have no collection value.