Today's "TOP 10"

10: "Does it come with a 31.8 option?"
9: "fully adjustable with the included metric crescent wrench...included!"
8: Heavy
7: 1st gen prosthetic hand
6: paperweight
5: "Free patch kit for anyone who can guess how much I paid for this"
4: "Haven't seen one of those in........well, ever!"
3: "Which old hospital did you find that in?"
2: "Well, guess I should have just gone for the custom frame"

And the number one answer: "WTF?"

Actually, I think that it would be very difficult to pin down a brand name or a country of origin unless it was stamped somewhere on the stem. I don't think that it is an old adjustable track stem, as those usually had some serious drop to them. My guess is that it came from either a "safety" style bicycle or perhaps an old touring bike. My other guess...it's most likely European. You could do some searching for like items on the www, but prepare for a long long search. Good luck!