Thanks for posting photos Wayne. The differences with the temp display is also the unit that has the different odometer knob position. The units may have been produced by a different manufacturer?? Earlier or later ??
Now Bikes RE 5 M,(UK )Blue 1974 RE 5 M (UK) X 6 H/D XR1200 X1 Sports RE 5 A (UK) Black 1976 Norton Rotary Classic 1988, Norton IP2 1986