Hello and sorry for my bad english (i'm French).
I join your "rebreather world" since few days.
I'm mine clearance diver from French Navy and I work with DC55 and others Aqualung rebreather in Brest.
I'm interesting with all old french military rebreathers like Oxygers57 ,DC55 , Mixgers...If you some units in bad condition...send me a mail.
And if you have questions about it...i'll try to answer.
Good dives for all.
Ch.