Globule bleu mail

It seems like you're referring to a specific type of French postage stamp!

The "Globule Bleu" is a series of French postage stamps issued in 1960, featuring a blue globe design. The stamps were part of a larger series called "Les Globes" (The Globes), which showcased different designs of the Earth.

The "Globule Bleu" stamps were particularly popular among philatelists (stamp collectors) due to their unique and colorful design. They were also used to commemorate the International Geophysical Year (IGY) in 1957-1958, which aimed to promote international cooperation in the field of geophysics.

Do you have a particular interest in French postage stamps or philately?