I’ve had this old first stage hanging around for a while with absolutely no knowledge on it (I don’t even remember how I came to own it). I’ve been trying to find some information on it recently but am coming up empty. I’m guessing it’s from around the 80s as it’s quite heavy with a large bulky plastic knob. The only information stamped on it is “made in France” on the yoke. The handle looks just like that from older Aqualung first stages but I can’t find anything similar to this model that they would have made. It’s got 2 HP ports, and 4LP ports, with one of those having a raised shoulder.