Alan

Maybe its because the pics are out-of-focus and the coloration seems odd, but I'm not 100% sure that its Akro.

Its in pretty good shape. I recommend against any treatment.

At one time, Bill Cokenhauer had two for sale at Ohio and other shows. I think they sold after quite a while and later Bill had a third one. IMO they are far more paperweights than they are marbles. Kids marbles aren't made in such large sizes. The technique is also paperweight.

X3 Rebel

What color does the ribbon appear to be in-person?

A name invented by sellers to fleece buyers for more cash.

Crockery type.

I'm a bit intrigued by the blue/black strand at 3:00.

X3

Pics are needed.

Contaminant from the gather.

As noted - Pelt.

Those would be odd colors for Akro.

All German. The 3rd one is coreless. The 5th and 6th ones are divided ribbons. The rest are Lats.

If they are at the surface only - it would be crud on the rollers.

Not oxblood.

It is a funnel. Look at the glass to tell you what was being made at the time it was retired. I have two Akro Agate funnels: The first has translucent olive green glass with oxblood. The second has a little bit of everything stuck to the top, including a marble. The clear glass is a bit visually interesting because of the ghostly blue that is wafting through it.

x2

No. A diaper fold is a CAC. When a glass ingot is cut and drops to the rollers, sometimes that ingot folds over on itself. In that case it will usually form an odd pattern. The once you have is a glass flaw that cooled too quickly to round itself fully on the rollers.

Far right one is a poor exposure. It may be MK. The other 3 may be Akro. The second is a folded reject, not a "transitional". Flaws don't signal a different process.

Vintage

You understand that these are new marbles - right?

I didn't attend. I saw a fair amount of the material that came out at the New Philly show shortly thereafter. Being familiar with what came out of the site in the "Wild West Days" (I visited the site multiple times and purchased from diggers) and knowing what Roger found in his early digs - the last "cleanup" was not that interesting. Judging from a dig primary investor's problem in selling what he had, I think others had a similar view. Wild West Days remnants:

Anemic MK.