I can chime in on the original issue Raschig 9-Ball set had cue balls all without dots or markings - whereas the cue balls with black dots were issued with the standard 15-ball set to follow suit with what was then standard tournament offerings from other manufactures.
The 9-Ball set cue ball is perfectly white with no colorations and no dots. It was designed to have the appearance of perfection gliding across the baize like it’s fellow other balls in the set. No numbers. No markings. Except for the Bumblebee 9 of course
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The 9-Ball set cue ball is perfectly white with no colorations and no dots. It was designed to have the appearance of perfection gliding across the baize like it’s fellow other balls in the set. No numbers. No markings. Except for the Bumblebee 9 of course

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