looking for the missing knob

[CaféNoir]

Hi everyone.
In this new era of digitally relay controled volume, one needs a volume knob without a dot mark. Problem is I have an awfully hard time finding one aestetically pleasing.

Now, I have found the goldmund-like aluminum knob (here: thlaudio web site pages ) called RH5030 andRH3020 quite nice, but they are either 50mm or 30mm at the base, which is respectively ridiculously large and ridiculously tiny.

I know an approx. 40mm version exists somewhere, but I cannot find it, though I have been looking for weeks (seriously). If anyone see them, or knows where to find those babies, please let me know, that would make my day.
Call me obsessional, but there is nothing dumber in a diy project than an inappropriate volume knob.

regards to all