Here is the image I mentioned earlier, thanks Darian, off an original instrument cluster. However looking at the mileage and speaking with the owner, it appears the speedometer was rebuilt utilising the original face but mounted onto a truck or car speedometer head. Whilst this looks good the speedometer head would contain the incorrect gearing. Another difference between this one and a standard Carrier is that the headlight toggle switch is a Ring Grip one as opposed to the small brass toggle switch.
Tony, thanks for your images, especially the wiring side. The panel I'm restoring at the moment needs to be re-wired and I'll compare yours with what I have. I'm now quite comfortable that this is the correct speedometer face for the 2pdr Carrier.
Thanks for the input but keep commenting.
Bob