Here are a couple of shots of the DOT knob before they are anodized. The shop did an incredible job on them, I think. They nailed the internal knurl perfectly, it looks just like the original. The internal knurl lets it glide between your fingers until you apply pressure when you grasp it.
Now a question, would there be any interest in these in the natural aluminum finish as well as the black anodized? The more I look at it, I think the natural finish gives an even more "retro" look than the original black, so I am going to keep a couple natural finish ones for myself even if I have the remainder black anodized. If there is enough interest in the natural aluminum I will offer both, though. It's probably going to be about another week before I get the black anodized ones back.
Here's some info on the knob: 1.75" diameter, 1.00" overall height, 3oz weight.

