unknown switch ?

[new to this]

Ive came across a switch but dont know what its for,had a look in haynes manual but thats no help, its mounted down low ,the choke is on the vent panel this switch is to the right but set back more

Do Dolomites have a heater fan switch,if so where are they,

my car is 73/74 so no fog lights

thanks for any help Dave

[matt of the vivas]

Heated rear window

[new to this]

Thanks Matt

[Carledo]

What Matt said! ^^^^^^^

The HRW switch should light up a sort of purplish shade when turned on, there's a peanut bulb under the screw off knob.

The Dolomite's heater fan is controlled by the the centre lever in the heater controls. Up is off, halfway down opens the pathway to the fan, 3/4 down is fan 1/2 speed and full down is fan full speed.

Steve