Along with a DH I picked up these odds and ends. The exhaust tee says La Spirotechnique, Made in France and looks like it is screwed into the reg body. Very thin... I'm curious about the reg model and yet, Does anyone need them?
Also, this DG. Says Dive Master but was that a brand or a model? I assume I remove the screw in the lens to add oil (?) but what kind of oil to add? I will keep this though