I picked up a C-30 in Jan and have been working on straightening some things out. So far so good, but does anyone know what this is above the rear view mirror? There’s no wiring to it and it appears to be just a friction knob.
Attachments
IMG_1512.jpeg (130.97 KB, 128 downloads)
IMG_1338.jpeg (245.38 KB, 126 downloads)


1959 60 Series Viking
1969 C10