Wow, Tony. Thanks for all the pictures. I didn't realize there were so many variations. Right now, I'm ready to start making the burgundy ones with the small fine-tuning knob in the center of the other knob. Other variations will have to wait until someone sends me an example I can use for color reference and as a model if the size or shape is different.

Is the gold colored knob at the end of your posts the same burgundy knob but with gold paint in the center? Looks like it.