I had one of these once as well. Never had a use for it, and don't know what became of it, but I had one. I doubt that there was ever a prototype for the point setup, unless it was one of the "kick switches" used in mine trams. The prototype 3-ways I've seen were either two turnouts overlapped, like the Shinohara Peteski mentions, or stub turnouts, of which I once laid one. In Nn3 no less. It works fine, but again, I have no use for it.