Hi Clem
I've found it and its a no3, it probably is NOS but is not a shiny as it could be but I'm sure it will polish up, I'd give it at least nine out of ten, if your looking for absolute perfect then you might be better getting an old one and re-chroming, but if its going on a bike that is ridden rather than trailered everywhere then I can't see that you'd be disappointed. PM me if you need more info.
cheers
Paul