[MGS] What does this switch do?

[Rick Lindsay <rolindsay@yahoo.com>]

Hello.  It's my turn to ask a silly question.

On the console binicle of my '70 MGB there are two
switches, a lamp and lighter.  I know that one of the
swirches is the hazard flasher switch.  The red lamp
is the hazard light repeater and the function of the
lighter is rather obvious.  But what does the other
switch do?  I am lead to believe that it is the
interior/map light but the wiring and color code
doesn't match that of anything in my manuals.  Advice
please?

rick

'70 MGB tourer