Thanks Morris, That basically checks out with what I've found. I'm building a custom bike from a pile of bits I bought. But, I assembled and mounted the hub and pulled a line through from the headstock and it met the hub about 13mm to the left. My problem is that I'm lacing a 16" HD rim, so I need to mount the rim to the centre of the hub so as the chain clears the tire !
But thanks for clarifying the position of the hub !
Ivor.