My Clifton still has it's original finish and "Dumont" decal. I can take some photos and measurements.
The finish and decals on my knobs was quite deteriorated. I've stripped them in preparation for refinishing but not sure what to do about the tiny decals.
Here's a closeup photo of the logo I took back when I got mine. You can faintly make out some letters on the right knob.
Are the controls knobs in any better condition on yours ?