The video helps to distinguish damage from shear marks and I'm leaning more toward Master now - showing the other cutoff also might have sealed the deal for me.
This is a great find, Art. As far as i recall, I have never seen one with that image or construction. It appears to be put together like a coin purse - very cool!
I am leaning pretty hard toward Vitro on the lower right marble and the one to the left of it might be Vitro too. But I would need a good straight on shot of the cutoffs on these two to have more confidence.
Thanks for the additional pics. A good view of the cutoffs usually helps. It appears the base glass is not entirely opaque and while it may well be a Master marble, the cutoffs are giving me a foreign vibe too. And unlike Art, it's not really striking me as Akro.
It's not one I readily recognize. JABO seems like a possibility but it has a pretty intense orange peel surface so I am not too sure, and I wonder about other possibilities.
Single color swirls in transparent glass are often difficult to ID. But given what appears to be batch white glass and the structure, I am leaning CAC, although it could be something else. Many of the swirl companies made similar marbles.
It's an oddball and at that size, I'm not really sure what to think - this may be a hard one to get a firm ID on. Although, it looks to me more like a machine made marble that got spun than a hand-gathered MFC, but I can't offer much more than that.