"It has been brought to my attention that Cinelli badges do not actually employ the cloisonne technique of enameling. While the blue-background Cinelli badges are very attractive it is in fact a misnomer to declare them cloisonne in nature. Just FYI for those who might be interested."
Cloissoné is a French term that means cloistered, in other words where the different colors are separated or cloistered by haut relief dividing lines. Using the original French meaning, the blue Cinelli enamel stembadge that you have is indeed cloissoné as every color is cloistered or walled in by a divider that limits the travel of the glass beads when they are liquified upon firing. If on the other hand you prefer to use the anglophone meaning given to the French word in the art world, you could argue that since the cloister dividing lines are not added (they are stamped in Cinelli's badges) it is not a true cloissoné. Given the use of a French word to describe the technique, I believe that when in doubt the original language interpretation is always correct.
I believe I might still have a few more of the NOS Cinelli stembadges from the 50's somewhere.