Thanks to Image, Arwyn and DaveK, I have got switches to sort myself out.
My approach to S N G Barratt was not very fruitful, as DaveK anticipated they passed me across to Holden, (their retail seller of non-Jaguar stuff), who said they had:
35870 Light switch (on back order and without the symbol/engraving, so DaveK is on to something about Jensen)
31780 Toggle switch, (not sure why that was suggested as it does not match anything)
39846 Hazard switch (low stock but an exact match)
Many thanks to all who helped.
