I'llhavethat1

Definitely looks "off" for a vintage German. The Latt core is puzzling (yes I know lots of people have been, and still making them for decades).

Nice pictures. Agree with Chad on the first one. Sometimes the orange/yellow glass formulation resulted in those weird bubbles on wirepulls

I used a hollow tube metal tube, ~3ft long, jammed it into the grass and set the marble on top. With my whopping 5MP camera at the time, thought these turned out pretty true to condition and colors as seen in-hand.

I'd go with Vacor on all three

Alley to me. Other than the colors there is nothing that looks Pelt imho. And the cutlines/colors look more Alley as well. Nice marble

Yikes, Looks Vitro to me

If you haven't purchased the lot yet, maybe you can ask the seller for better photos if that's the only marble holding you up. If you decide to pass on the lot, please PM me.

Should I maybe have used the term counterclockwise twist? The OP's marble in question has some odd features, a nice looker though. Example of counterclockwise twist below

Surprised no-one mentioned the left hand twist?

If they are oval/egg shaped they weren't meant to be marbles. The ones shown in the book are not glass.

Nice looking slag

Most marbles will show a color when strongly backlit (blue/purple/etc.) What's the size?

First two pics are the same marble, right? I agree the red/white/green looks more familiar to a Pelt color combo, but the seams scream Alley. Maybe the pic order got switched up at some point. Nice marbles either way

looks more like a big ol' cold roll mark to me. A lot of industrial grade "clearies" didn't have the same type of quality control as marbles (meant for kids to play with)

fresh, finally getting thru some stuff

Books are a great way to start but the Forums are also valuable. Just because it was printed doesn't make it true and even in the last few years there are notable improvements as we all learn, bounce things off each other and share opinions. Marble on indeed!

Well, OK... but only since it's Peltier Tuesday

Wow

If the slurry is thick enough they won't "crash" together, but I agree that a rock tumbler is NOT a way to treat a marble. Tommy, I'm still curious in hand does this marble look spherical with original surface? My eyes aren't getting any younger and it could just be the photo's/reflections playing tricks with me.

I've got some more kicking around here somewhere

The pictures make it look a bit out of round, almost as if hand polished or rock tumbler. Might be what's throwing things off.

nice score.

Back in the day I'd sometimes get "unknowns" in with a group of marbles picked up here and there. My thought process (arguably flawed) would be to consider whatever manufacturers outside of the US were making marbles in a "similar" style to the OP, and where the vast majority were made (and where those countries exported to). Just my opinion and not to take away from some good points already made.

It certainly looks that way, beautiful