Pelt or Akro slag?

[josiemarbles]

This one is a larger marble with pretty swirls throughout. Any ID?

[Ric]

That is another Vitro Conqueror variant - some might call it a Phantom Conqueror because of the white internal filaments rather than a simple white surface veneer like the last one you showed.

[Ric]

Remember, a "slag" has only white striping glass in a clear or colored transparent base. The blue patch on this one means it is not a slag.

[josiemarbles]

1 minute ago, Ric said:

Remember, a "slag" has only white striping glass in a clear or colored transparent base. The blue patch on this one means it is not a slag.

I didn't know that, thank you! I'm very new to this all and it's very overwhelming haha. You have been so helpful 🙂 

[Ric]

1 minute ago, josiemarbles said:

I didn't know that, thank you! I'm very new to this all and it's very overwhelming haha. You have been so helpful 🙂 

I've been at this for over 25 years and I still learn new things about marbles nearly every day. It's one of my favorite parts of the hobby. If you stick with it, things will eventually start falling in place. Now that you've seen what Vitro Conquerors look like - the top patches can be many different colors, but beyond that they are very similar, having white glass veneered over the rest of the transparent base glass, or sometimes appearing more like internal filaments - you can probably look at the rest of your marbles and find more of them. As I said earlier, they are one of the most common vintage marbles out there.