The red/brown one looks Akro to me.
A question worth asking yourself before you post for ID is, "Does this photo accurately represent what the marble looks like in hand?" Colors can be important for a proper ID and your photos are all we have to go on.
And FWIW, I think this one may be an Imperial too . . . straight on views of both seams are often necessary for proper ID.
I'm pretty sure the green one is an Imperial (Asian) but I am okay with the second from the bottom being Master (thanks for the additional pics).
And this is the red/brown I was referring to . . .
I agree that most are Master but I think that green one may be foreign and the red/brownish one might be Akro and i wonder about the second to last marble too. Straight on views of both seams would be helpful with IDs . . .
Oh wow, you've got some talent! They're all great but these are my favorites. Some of those "tracers" are killer! Do you sign them?
I thought this was an Alley - now you've got me wondering. 😉
Those are really all very nice marbles, Chris! What size are they?
I like everything about this little china - the quality of the porcelain, the unusual design, the colors, the symmetry, the condition, just a beautiful example IMO.
I would say that it could be a Marble King but I am not sure how you would know for sure. It seems like the seller has multiples and is offering them up together with Wee Glows in another listing so . . . maybe? But I don't think who made this one will have any real effect on it's collectible or monetary value. Especially if there is no way to verify its ID.
I spoke with Sue at the Amana show after Les passed, she had a large "interment marble" with Les's remains with her. I seem to recall her telling me that the marble was made by a company in California. But this was a long time ago and I am not 100% sure I am recalling it correctly.
I do not think the marks on your marble come from marbles contacting one another. They are unlike the eyes you can see on the three Bennington marbles that Chad posted. I do not think your marble comes from a batch-loaded kiln, I think your marble was made using a kiln tripod. That is why I do not think it is a classic Bennington type marble.