Horn button, English COB car

[xb-60]

Thanks for the responses gentlemen.

Looks like it’s a consensus that the smaller, concave button is in fact the horn button.
….but…. at this stage my thinking is to use the large convex MGA horn button....as a horn button.

I am allowing myself some licence because:
- a larger, convex button is easier/quicker to locate and push…and therefore safer
- my dash already has some non-standard, period features, as might be appropriate for a car having road/race use

Cheers!
Glen