Paul,
If I had a second one, I would offer it to you. I restore switches like these. The one in the picture is for my "show" stock.
These real E body vert switches command some big money. As a word of caution, I have seen older style convertible switches (B body) with an E body knob "make-shifted" onto the stem. Make sure that if you are offered a vert E body switch that the part number is 2947406 with four holes on the mounting flange, not two or three.
Slotts