This is a 2006 Centaur carbon crank + 111mm square taper BB for British threads. I bought it for use with my new TT bike but had chainstay clearance issues and had to use another crank. I mounted it in the TT frame and I pedaled it for a few minutes on a trainer, but it is otherwise new. It's a bit greasy at the pedal threads, but that just saves you a little time :-)
Yours for $150. Pictures available.