Ric

Thanks for the thoughts, folks! I think the two flanking the swirly marble in the last pic are almost certainly Kokomo, because when I put them in with a group of other Kokomo marbles they fit right in. The first marble I posted doesn't blend in with the Kokomos as well, but it is an odd marble, so who knows.

The black really is nice so I doubt MK. I can see why you ask about the base, and it may well be black. But I think this marble is too nice to find out the easy way. lol. And it is true black - there isn't a hint of any other color that I can find, even using a loupe and a very bright light. So I will go with Akro and just be surprised that I haven't seen another quite like it. Thanks to EVERYONE for the thoughts!

I agree it'd be a weird Pelt. Problem is, I think it would be a weird Akro too. lol The base color color has me confused.

It's a really nice black. Have you seen that greenish-yellow base color on an Akro? It seems like a Pelt or Akro patch are most likely. I can't imagine what else it might be except, maybe foreign?

They both look like Akros to me - weak Corkscrews?

Thanks for the input. For the two marbles pictured with the OP . . . did Kokomo ever flash up on your radar?

It's true black: no AV.

Here it is with a couple of others I think might be Kokomo:

It seems like the temperature of the glass, how viscous it was, when it hit the cup would have a significant impact on the result, maybe "thicker" glass would have provided the "resistance" you mention. I'd also be interested to know the distance between the funnel at the bottom of the tank, where the glass exited, and the spinner cup.

It never occurred to me before, but now that you say it - sure does look like a lollipop, or some sort of hard candy. But I can guarantee you'd bust a tooth biting into it. lol

The base is opaque and there are more than two ribbons - maybe four, but its hard to tell. One seam is pretty obvious and I think there is another somewhere, maybe, it might be in a fold. A hair over 5/8" I was thinking maybe an odd Kokomo?

It's odd to me. Seems too nice to be Kokomo but . . .?

It's a weird one . . . . . . about 5/8"

Jabo made a 15/16" marble that had those colors and fluoresced. Although the ones I have seen had quite a bit more clear glass in them. I'll look for the one I have and will try to get back here later.

I think there is no doubt about it.

An American Agate type, maybe?

I would say those are both Vitro - patch and ribbon style. The right one is a nicer marble.

The base might have a little opalescence but it is not an uncommon trait for the base of translucent Rainbos to look almost transparent with strong back-lighting. Because of the way light reacts inside of glass, a little bit of color in the marble can make the whole base look colored. As for the brown striping, it is a bit less common on Rainbos.

Welcome! You have a variety of vintage marbles - some appear to be foreign (non-USA) made and most appear to be in pretty rough condition, which signficantly limits their value to collectors. The big red and green one is an Akro Corkscrew, which would be a desirable marble if it were in better condition. The larger tan one with green stripes is a Peltier Muddy, which in better condition, is also collectible. I would be interested to know if you see sparkles in the big green one with white stripes. It might be an Alley Green Giant, which would show a lot of aventurine sparkling inside in sunlight or under a bright light. I also see a few Vitro marbles, including cat's eyes, some West Virginia Swirls and a some foregn marbles, mostly cat's eyes. I hope this helps!

I am sorry to hear this. My condolences to his family and friends.

I'd say Pelt on the left and Akro on the right.

It sure does, Ron. At first I thought it looked a bit like a Jackson but the blue is a bit different than the similar Jacksons I have. And I thought Cairo used some of that dirty Vitrolite too. They did make marbles that fluoresced, right?

I appreciate the offer, Bruce, but I'll keep it for comparison purposes, so I don't fall for another one.

Thanks for helping me think about it, Steph. It gives me the feeling of a late NLR or early Rainbo, so I think "tweener" is probably a good call.