Topic: Turn signal light

[bwrrn0]

On my early 64.5, the turn signal indicator light on the dash will light up only for the right side light but will not for the left.  All lights on the exterior of the car light/work just fine, only on the dash do I have the problem. Brake lights work just fine. Any help would be greatly appreciated.
I do know that there is only one turn signal indicator on the right side of the dash that indicates both turn signals when activated.
This just started happening two days ago. Prior to that it worked fine for the previous years.

I was thinking that the left wire on the cancellation switch in the steering column has come off.
Thoughts?

Thanks for any help.
Rick