I don't know about it not being a Falcon, seems very similar to this one, other than slight wraparound stay and dropout differences. It even has the remnants of top and bottom head badge rivets, which older Falcons have. They were usually hollow "pop" style rivets though.
http://hilarystone.com/images/sale%20im ... -track.jpg
http://hilarystone.com/images/sale%20im ... -track.jpg