Here are the photos of what I thought was a blackglass Wade. It is not a threadless pin-type insulator. It is too well made, too thin, and the pinhole is straight all the way up. It is almost like a cup except that the mold marks are too perfect and industrial looking. No other guesses from me. I was without brain when I bought this. I looked for a catagory titled hunts and fools, but this was the closest one I could find. :-)