Originally Posted by
MightyGem
Which came from the amalgamation of Sud Aviation, Nord Aviation and Société d'études et de réalisation d'engins balistiques (SÉREB) in 1970.
Pumas and Gazelles before 1970 would have had the prefix SA.
Sud Aviation of course came from the amalgamation of Sud Est and Sud Ouest hence the early Alouettes are SE3130 and the Djinn SO 1221.