A spoon could damage the knob or the panel.
Loop a string under the knob and pull up. That's what other Moog service manuals recommend.
Tips and techniques for Minimoog Analog Synthesizers
Gear list: '04 Saturn Ion, John Deere X300 tractor, ganged set of seven reel mowers for 3 acres of lawn, herd of sheep for backup lawn mowers, two tiger cats for mouse population control Oh you meant MUSIC gear Oops I hit the 255 character limi