Thanks Richard - HOE is an interesting site.
In case it's of interest to others I list below the Lucas part nos for the switches I have been working on today on my early 1976 4/4. The switches on the 4/4 changed towards the end of 1976.
Hazard Warning switch: Lucas 39846
Auxiliary switches to the left and right of the Hazard Warning switch: Lucas 35947
Side Light / Headlight switch: 35870
Googling brings up new old stock related to other vehicles such as Foden, Jags, MG etc. As I said in an earlier post, I manage to recover what turned out to be sticking switches using WD 40. The trickiest part was removing the switches from the their bezels - but once you get the knack.....
