Dallay is a French
philatelic
Philately (; ) is the study of postage stamps and postal history. It also refers to the collection and appreciation of stamps and other philatelic products. Philately involves more than just stamp collecting or the study of postage; it is possi ...
editor established in
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...
. Dallay has published
stamp catalog
A stamp catalog (or stamp catalogue) is a catalog of postage stamp types with descriptions and prices.
The stamp catalog is an essential tool of philately and stamp collecting. Stamp catalogs are part of philatelic literature.
Similar catalog ...
s since 2001.
The catalogs list
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), who then affix the stamp to the fa ...
s issued by
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
and other francophone areas:
metropolitan France
Metropolitan France (french: France métropolitaine or ''la Métropole''), also known as European France (french: Territoire européen de la France) is the area of France which is geographically in Europe. This collective name for the European ...
,
French overseas territories
Overseas France (french: France d'outre-mer) consists of 13 French-administered territories outside Europe, mostly the remains of the French colonial empire that chose to remain a part of the French state under various statuses after decolon ...
, French post in
Andorra
, image_flag = Flag of Andorra.svg
, image_coat = Coat of arms of Andorra.svg
, symbol_type = Coat of arms
, national_motto = la, Virtus Unita Fortior, label=none (Latin)"United virtue is stro ...
and
Monaco
Monaco (; ), officially the Principality of Monaco (french: Principauté de Monaco; Ligurian: ; oc, Principat de Mónegue), is a sovereign city-state and microstate on the French Riviera a few kilometres west of the Italian region of Lig ...
. In late 2005, Dallay published a catalog for the French former colonial empire.
The catalogs provide detailed information about the stamps, such as, stamp designers' names, postal use at the time of issue, etc.
In 2004, Dallay was convicted by a court of justice of
forgery
Forgery is a white-collar crime that generally refers to the false making or material alteration of a legal instrument with the specific intent to defraud anyone (other than themself). Tampering with a certain legal instrument may be forbidd ...
and unfair competition for the use of
Yvert
Yvert et Tellier is a postage stamp dealer and a philatelic publishing company founded in 1895 in the northern French city of Amiens, where the head office is still located. The logo is a circle divided into a snowflake and a smiling sun. It is a ...
numbering system which was first used in 1895. In March 2005, after arbitration by the French ''Conseil de la Concurrence'' (Competition Commission),
Yvert et Tellier
Yvert et Tellier is a postage stamp dealer and a philatelic publishing company founded in 1895 in the northern French city of Amiens, where the head office is still located. The logo is a circle divided into a snowflake and a smiling sun. It is a ...
began to license the right to print an index of Yvert stamp numbers at the back of competitors' catalogs. Dallay began using the index starting with the 2005-2006 edition.
Publishing companies of France
Philately of France
Stamp catalogs
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