Looks like this guy doesn’t know what he’s got, or what he’s done to it!
http://www.gumtree.com.au/s-ad/collingwood/bicycles/single-speed-fixed-gear/1078439242
I think he may.
Aside from the crappy frame with a Colnago sticker, I’m intrigued by the rear brake with the cable arm on the drive side, is this common?