It very much looks like a Trek head badge. The fork looks Trek-like too. I've been looking at some other Treks (1500, 2000) from that approximate era (aluminum frame and fork, threaded headset) and it looks amazingly similar. I'm thrown off by the internal brake cable routing for the rear brake; I haven't seen that in that era Trek, but I've only been able to find drive-side shots, heh.