Ric

This is an interesting one. It's ether an unusually clean looking crease pontil or an unusually gnarly-looking pinch pontil. I think it's the former, and Seike.

Yes, Type I - if the base is transparent.

@COVRSWAP The term "slag" is an old one. A slag is any marble that is composed of only a transparent clear or colored base glass and white striping glass. Your marbles certainly fit that definition. But some marbles that have the same composition are called "swirls", based primarily on the way the white is distributed in and on the base glass (please don't ask me to explain the differences, it's just something you sort of figure out, eventually. Maybe @akroorka will take a stab at it. 😁). I think many people, me included, would call your marbles swirls, and as @Fire1981 said, they might be wire pulls. Wire pulls are a particular type of swirl where there is only one continuous stream of striping glass. If you can only find two distinct ends on the white striping in your marbles, they are indeed wire pulls. Here is a fun exercise . . . Imagine that the amber base glass of your marbles is opaque white and the white striping glass is opaque red. The only red you would see is where the white is currently on the surface. Those marbles would be called swirls, with no possibility of being slags. 🙂

"even though . . ."? I think they are very nice marbles, period. And my guess as to their origin would be the Netherlands, Japan or Germany, in that order.

When you take photos for IDs, try to capture any seams or places where two colors interface on the marble. The size is often helpful too.

I like to distinguish between bubble pops and bubble pop craters. They both start with bubbles, but bubble pops happen when the glass is still hot and a subsurface bubble burst - they have smooth, rounded edges. Bubble craters happen when the bubble is subsurface and is initially covered by a thin pane of glass after it cools. At some point, the pane shatters and you're left with a crater that has rough edges and a smooth, rounded bottom.

Do they use the same names for the new ones? For some reason, I thought that was being discouraged to avoid confusion.

I agree with what Alan said.

Not Pelt, IMO. I think it looks like one of the newer MKs that got weird.

JABO Classic, IMO.

It's new, probably one of DAS.

Probably Alley.

I think it looks a lot like one of these Marble Kings.

I think Sistersville Alley.

The best info you will find here is probably this thread. There is much more info at AAM.

Nice color - creased pontil Seike.

Creased pontil - Seike.

In general, this is what you're looking for. . . Pinch pontil - Yasuda Crease pontil - Seike

Absolutely - kind of a wild one, cool!

Nice marble, Fire. It looks like a Jewel to me.

Heaton or Cairo, IMO.

I think Ravenswood too - sorta drizzly.

In this case, but not always. 🙂

I'm pretty sure I saw more of them in that haul so you might find a better one.

Not JABO, maybe Ravensood.