They are in the headlight loom at the front offside of the car and these are the only still disconnected wires I have.
I have working from this loom - sidelights, dip beam's, horn and the brake light switch. Some of these wires must be to make the main beam work.
The headlights have their own earth wires which are OK.
My car's a 1955 Series 2 facelift with the bronze speedometer and cloth wiring loom.
