Although the economic crisis of the 1930s and World War II prevented any actual opening, a semi-postal stamp was issued on 6 July 1939,[4] and a ruling council was instituted in 1943 with Vaillé as president.
To help in managing the museum, an association was founded in 1947: the Société des amis du musée de La Poste.
[6] Permanent exhibitions present objects connected with correspondence, transport of the mail, work of the postmen and philatelic and marcophilic items.
In the upper offices, a philatelic library is available to the public, partly constituted by a loan from the Académie de philatélie.
In the entrance, a philatelic counter plays the role of post office, with cancellations inspired by temporary exhibitions.