philately Philately (; ) is the study of postage stamps and postal history. It also refers to the collection and appreciation of stamps and other philatelic products. While closely associated with stamp collecting and the study of postage, it is possibl ...

, a mixed

franking Franking comprises all devices, markings, or combinations thereof ("franks") applied to mails of any class which qualifies them to be postally serviced. Types of franks include postage stamps (both adhesive and printed on postal stationery, whethe ...

is an occurrence of

postage stamp A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail). Then the stamp is affixed to the f ...

s of more than one country or issuing entity on a single cover, or the occurrence of postage stamps of more than one

currency A currency is a standardization of money in any form, in use or circulation as a medium of exchange, for example banknotes and coins. A more general definition is that a currency is a ''system of money'' in common use within a specific envi ...

of a country or issuing identity on a single cover. Since nearly all countries of the world have agreed to deliver each other's

mail The mail or post is a system for physically transporting postcards, letter (message), letters, and parcel (package), parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid ...

, it is unusual to need more than the stamps of the originating country; valid mixed frankings are uncommon and valued by collectors. Before the advent of the

Universal Postal Union The Universal Postal Union (UPU, ) is a specialized agency of the United Nations (UN) that coordinates postal policies among member nations and facilitates a uniform worldwide postal system. It has 192 member states and is headquartered in Be ...

in 1874, sending international mail was quite an adventure; it might be necessary to affix the stamps of the destination country in addition to those of the origin, and in the worst cases, possibly for several other countries along the way. Sometimes the letter was held until the recipient brought stamps, they were affixed and cancelled, and the result handed to the recipient. Since this only happened during the first few decades of stamp usage, and only for the few letters that were sent great distances, very few covers have survived. For some combinations, only single examples have survived, and command spectacular prices among collectors. Another form of mixed franking occurs in transitional periods, such as after the

Irish Free State The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...

's establishment from the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

in 1922 and 1923. This can be either as a way to help the public use up the stamps of a defunct government, or involuntarily as a propaganda tool. An example of involuntary mixed franking is when

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

took over

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

in the

Anschluss The (, or , ), also known as the (, ), was the annexation of the Federal State of Austria into Nazi Germany on 12 March 1938. The idea of an (a united Austria and Germany that would form a "German Question, Greater Germany") arose after t ...

in 1938; during the several months while Austrian stamps were still accepted, Austrians sending mail to Germany were required to include a German stamp on the envelope. Sometimes illegitimate mixed frankings occur when a postal user adds another country's stamps to an envelope just for fun. Many countries' postal regulation require clerks to refuse to handle these, even if the correct postage of the country is present, because they slow down the sorting process, but such covers can still get through the system.

References

{{reflist Philatelic terminology Postal systems Postal markings