Help me ID this bike?

I recently picked up this unknown brand bike frame and am trying to figure out what the heck it is. The seller knew nothing about it other than it’s chrome, has an Itallian threaded bottom bracket, an integrated headset, and has “+GF+” stamped on the BB.

It’s a track frame and I’m planning to build it up but I’m really curious where it came from. I’ve posted a few more detail photos on flickr and was able to find this thread on Bikeforums (thanks Mikey!) and this company seems to be connected somehow, but those are still pretty weak leads. Any ideas?