Envelope classification of souvenir covers

According to the commemorative contents, there are souvenir covers for maiden voyage, tourism, insurance and postal exhibition.

According to the postage map, souvenir covers are divided into commemorative postage covers and commemorative envelopes: commemorative postage covers are printed and distributed by postal departments. Printed with pictures, words and postage certificates related to the commemorative theme; The souvenir cover is designed, printed and distributed by postal departments, philatelic companies and philatelic outlets. Printed with pictures and texts related to the commemorative theme, affixed with relevant existing stamps, and stamped with relevant postal datestamps or commemorative stamps. Both of the above souvenir covers are called postal souvenir covers.

In addition, there are souvenir covers designed and printed by mass philatelic organizations, units, groups or individuals themselves, which are called non-postal souvenir covers.

A souvenir cover was sent to the post office during the commemoration. If the envelope is stamped with the postmark of the mailroom, it is called a souvenir cover.