Steph

That's one marble? I'll say Jabo Classic.

I see your dilemma. Is that base yellowish? If it's really close to clear then maybe you're in Akro popeye patch zone.

It's so different that I want to say "foreign", but I know I fall back on "foreign" too easily. I'll have to stick with kinda neat.

... lol ... I thought so ... though I'm cautious who I share it with!

I was wondering about CAC but didn't want to be the one to bring it up. I'm fascinated by CAC transparent swirls, but very limited experience with them.

It could have been sold as a Sunburst. The name is fuzzy in my opinion. When the name started out it was a very distinct style. Then the look of Masters changed drastically and lines got blurred. "Brushed patch" is a descriptive name used by collectors. It's more informative than whatever name Master might have used for it.

Could be America with those colors. Considering Master. But I'm not sure. The white inside is coming across as unusually bright.

The iridescent finish is a sign of a modern marble. These could be Asian or Mexican.

An Asian cage-style cat's eye

"She" though. Frances is the wife of a collector whose name you might recognise: Ron Buol.

200? Such self-control. Very admirable! Also, point taken. People sure are loving on the Vacors now.

Peltier Rainbos

(At least I think it is goldstone ... does it sparkle?)

On the left possibly the kind of transitional which often showed up in Canada. Goldstone on the right, with an unusual band that I don't recognize. Goldstone is a manufactured glass sphere often found in mineral sphere collections, not attributed to any marble-making company that I know of.

An example of Akro Sparklers for comparison: The West Virginia Marble Collector's Club - packaging

Circa 1930. NLR era.

This one inspires me to consider sculpting a marble run, as an alternative to creating one with tubing or traditional tracks.

mmmmmmmm, butttteeeerrrrrrrr

Vitro sure is a reasonable possibility on that one, with the caveat that game marbles can be tough to positively ID by maker.

Looks like various flavors of Vitro. Mostly. There's a game marble on the left in the first photo which I'm not sure about.

So, those are my two guesses: Akro Royal or modern MK.

I toyed with the possibility of it being a modern MK where the end patches got overenthusiastic and met in the middle. I also toyed with the idea of it being foreign. But I wasn't going to mention either musing until I saw this coincidental post on facebook with a similar black base. Marble King Freaks & Geeks Discussion/Sales Group | Facebook

I would have been looking for some odd swirl company. I don't know odd Kokomos. Seems one mystery swirl that I wanted ID-ed for ten years may now be seen as a slamdunk Heaton, thanks to new information in that quarter. (Mentioned in the spirit of realizing there could still be big wide gaps of unknowns even to the most experienced ID-ers.) My thought is that I still don't have any corner or niche into which your marble rolls ... but it's cool to see such a colorful mystery. With that distinctive color combo it seems like it shouldn't be such a mystery.

5/8"? ^^ my typical stalling question