"Hello Avva"
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Your first 2 marbles look like they were made by the Alley agate company. The white ones appear to be opaque & have a slight iridescent shine, maybe one of a few companies ??. The amber marble is 100% machine made, the folds and creases happened during production. As far as a manufacturer I'm leaning Vacor looking @ the frit in the glass IMO. Others will chime in w/ their opinions, again
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