Was reading an interview with "Diggers" in American Digger. Their show has not been renewed. Just so happened, a few hours later they were rerunning on TV. The show was the one on the SanFrancisco earthquake and they found a gas valve. When I saw it, I knew that was what I had found. Who says their show was worthless !!
the left side is threaded, the turning knob on the bottom has broken off. The right side shows that it's a " T" valve