Sadly, no photos, but here's the story;
Got an over-pressure several years back that has sat on my dresser just to be admired, but in getting ready for upcoming trip I thought that I might see how bad it was and if not too bad, fix up and bring.
Well, it didn't have the internal green hose or the original mouthpiece, so I just figured it was a converted mistral and that would be easy...
First surprise was that i put it on a tank and it breathed fine.... not even a freeflow... and I was amazed... The hoses had a wicked set to them like a bird's nest and the mouth piece was borderline dried out, so I figured I'd swap those with some extras I had on hand. Removed the exhaust horn and with a tiny coax the duckbill slid right out looking fine. Inspected the diaphragm and it looked great... but it has the original evil box clips that after finding it breathing so well I did NOT want to fool with, so, with a flashlight I thought I'd take a peak in and see if it had the short or long mistral nozzle, and here's what I didn't expect... instead of seeing the hexagonal valve body and the compound mistral lever in there... what I saw looked a heck of a lot like a really wide horseshoe lever with a spring under each arm, and a brass colored first=stage looking chunk like an aquamaster.... granted, I was just looking down the horn, but I've done several mistrals now, and it looked nothing like one...
So what do I have in there???
looked at some overpressure internal photos on an old thread, and that was what I was expecting, but not what I saw. Sure I could just open it up, but like I said, for the moment it's breathing good and I don't want to foul it up or have to fight the clips.
Any thoughts would be appreciated!
BTW, it has a great sticker on the can from that "professional scuba" place we were talking about recently in another thread.