Mine all have dents and as-mades on them, unlike all my other Vacor marbles, so clearly something was different in the production of Atmospheres. I just assume hand-gathered and machine rounded.
Thanks. I was about to agree with you but I posted them on the Alley FaceBook group and Chuck S. said they're CAC.
Hopefully more members will chime in with their vote. 😀
5/8". They feel CAC to me but I have seen Alley chocolate brown with green before (woodland camo, or something). Also all of my CAC swirls of this type have a darker, more vivid red.
Is it very light like a clay marble or is it heavy and rugged?
If light I assume it's just a China marble that has worn down possibly from water damage which the painted parts would have resisted.
The American Flint was the "Official Magazine of the American Flint Glass Workers Union of North America". In the 800+ page compilation I found on Google Books, this was the only article about marble making.
1927-05--American Flint - William J. Miller's Semi-Automatic Marble Machine.pdf