The French postal code system, introduced in 1964 and refined in 1972, utilizes a five-digit system. The first two digits represent the department. For the Alpes-Maritimes, the code begins with 06 (e.g., Nice is 06000, Cannes is 06400).
The efficiency of this network relied heavily on the "Flux Nuit" (Night Flow). The term "Folder 740" and "Series 334" referenced in the title typically correspond to internal administrative archives or technical binder numbers used by the Direction Régionale to catalogue tariff procedures for high-volume clients. code postal night folder 740rar 334
The system was designed for bulk mail (publicity, catalogs, periodicals). To qualify for the significantly reduced "Night Rate," the mailer had to agree to two conditions: The French postal code system, introduced in 1964
In archival terms, these numbers likely refer to: The French postal code system