In 1939, General Dumontier, commander of the 5th Army, commissioned Jean Prouvé to produce 300 little pavilions destined to shelter between 4 and 12 men. Adapting the external structure system developed for a leisure project, the Ateliers Jean Prouvé produced several hundred of these 4m x 4m units, which could be juxtaposed, whose external frame in folded steel sheets, enclosed using simple timber panels, could be quickly assembled and demounted by two men.
