My roommate inherited an octopus from his uncle. The uncle no longer dives and does not remember the gear. With the help of Scubaboards, we have determined the set to be 1970s. The First Stage is a SeaPro, one of the Second Stage regulators is also a SeaPro. However, the other Second Stage regulator has no markings of any kind, no numbers or letters. According to the members on Scubaboards, the regulator is not a Poseidon or a Dacor. It might be French made.
The housing is plastic
I have searched all over the internet and have not found the regulator. I am more interested in finding out what this thing is since there does not seem to be any available information on it.