Re: DAC 90A Knobs
Cream sets were made with all three styles of DAC90A knobs, but I'm suspecting the knobs here are of the final, push-on type, with perspex backing disc. In that case it's down to injecting WD40 (or your preferred lubricant) through the relevant cabinet hole to where the knob meets the spindle, waiting a while, then wrapping a thin cloth behind the knob and pulling...
Paul
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