Ric

If it's American, I would guess Master, but I am not convinced it's American.

It is stone that has been shaped into a marble. Back in the day some were hand faceted (mainly agates), meaning that they were actually ground down by hand on large abrasive wheels. A bit later they were made using water-driven marble mills. These days they are typically machine-made using an orb grinder/polisher - hence, a stone or mineral sphere. Yours looks pretty out-of-round to me - how does it roll? That is the most important thing for a marble. It may have been made by a hobbyist.

Sure enough, JABO Lawnchairs. There were a couple of different runs. I think these came from the first of them. I think @Melissa has some prettier ones from a later run.

Yes, what might usually be red is orange. It's a good Akro, for sure - harder to find than a Superman, IMO. I'd be interested to hear what @disco005 might say about this one.

You know, Vitros are about the only marbles with seams I have ever given one whit about but that has changed since getting to know the El Aguilas better. It's sort of odd, but I think I'm getting a little bored with American machine made marbles.

@akroorka Don't forget El Aguila, which I think this is - the colors and construction are spot on. 😁

@Parmcat Really man, go easy on yourself! 😉

When I think of Vitro oxblood I think of this . . . And maybe this . . . @VaMarbles If that one was mine, I'd have it with my Akros.

I thought I saw a hint of it in your pics. 👍

Late 1850s into the early 1900s, I think. You might also see them referred to as variegated stoneware.

Sort of a fancy clay swirl - It's called a Jasper or a lined crockery (German). You can find them with green, blue and/or pink lines.

This shows the sort of cage-like structure that you're looking for in the core of a latticino.

I had a reverse brain glitch - it's a JABO Ace.

Nah - that's purple. 🙂

That pinkish base and chunky AV is the tell.

Here is an Opal Chad posted in the past - see that orange opalescent glow at the bottom of the marble? That's what you're looking for. Yours may not be as pronounced as his is.

I can see whay you might think Vitro - it does look a lot like a new style All Red with some extra color (blue) but it doesn't look quite right to me and I wonder about foreign (not American) possibilities.

Might be a Vacor Sunset.

Vitro, IMO.

Not Peltier. It looks a lot like a Vitro Opal to me. Do you see an orange opalescent glow if you weakly backlight it?

Not a Peltier. I'm pretty sure it's from a JABO contract run. I think @Fire1981 will know which one - I forget.

It looks more like an odd little coreless swirl to me. I'm not seeing what most would consider a lattice.

This is a pretty one - an Alley is my thinking.

Welcome aboard! That is a Seike crease "pontil" transitional (hand gathered and machine rounded) marble from Japan. One of my favorite colors too. 🙂

I think Akro too. IMO, the interesting thing about these marbles is that they are basically slags - white with a yellow/amber base glass.