Munerelle 34 oxygen regulator

[Sheniloiu]

Hy guys,
I'm looking for information for this French WW2 oxygen regulator (or system). It was used on the first 76 IAR-80/81 Romanian fighters.
So far all I could find was the designation - Aera Type 34M Systeme Munerelle - and that it was also used on some of the Dewoitine D.520 fighters.
Photos would be of great help.
Thanks!

 

[waroff]

do you neeed drawing and how is function?

 

[madman]

@ Waroff,

For my Fokker G.1 cockpit project I can use any information about this piece of equipment. Do you have one yourself?

Best regards,

Mathieu.