The speedo does not have warning lights in it so the lights are ignition, oil pressure, main beam - and I have clean forgotten what the last one is!! ( Just remembered - fog light!!)
I'll have to go and test it!! David Aspinall of Anglian Triumph built in in 1999 though I re-trimmed it in red leather some years later. The original hub was the black centre with visible bolt heads. Spitfire body on GT6 chassis so GT6 dash. No point in a radio as you couldn't hear it!!