After many years out of the workforce, I got a job. A manual labor job. So I'm tired!
I'm going to have to seriously discipline myself to set time aside to fix the broken photobucket links in many of my Study Hall threads.
If an older marble, then matte finish would likely mean time spent in water, such as in an aquarium or dump (or privy).
Newer marbles are given some sort of treatment (I think acid wash) to get a matte finish.
Oh yes, you can assume Akro if you have a distinct corkscrew. For sure Akro on top.
I would say for sure Akro on the middle but the jagged ribbon made me wonder. The top of the middle one is pure Akro. The frosted finish means there's no point in assigning it a grade. It would be the lowest grade on the mint scale. Probably spent a lot of time in water. But with that strange structure it might still generate some interest.
The last picture is mostly Peltier Rainbos. The bottom might be Master though those colors strike me as unusual.
The top two groups are a lot of West Virginia Swirls, including for sure some Alley Agates.
Hi. Welcome.
My brain is mush today but I wanted to say hi.
The bottom row looks like West Virginia swirls.
The top left ... that pattern looks like the "horseshoe" shape of some Vitro cat's eyes, but my brain isn't making sense of the color distribution between the ribbons.
I agree a good chance of Jabo based on both size and pattern.
That would put it after 1990.
With an Alley (the most likely older candidate for a 1" marble) the swirl pattern would tend to be crisper. It would be easier to see what color was the ribbon and what color was the base.
Robwell, what led you to think it would be old?
The crease you're showing in the first two photos is called a "cold roll". The marble was just a little bit too cool to for the molten glass to be completely smoothed out on its ride down the rollers.
Right about the name slag. The typical manufacturer term for slags was "onyx".
"Onyx" became a problematic name in the early 30's if I recall correctly -- because the true mineral onyx industry was trying to get protections against glass makers presenting their products as onyx -- but by then marble makers were mostly switched over to non-slags. Hmmm ... now I start an argument in my head about how Akro continued to use the name "onyx" into its corkscrew-making days well into the 1930's ... but I refuse to delete because most of what I said above is still true ... I think. lol
The defendant in the FTC case was Gropper and the order to be very clear about what was meant by "onyx" applied to the Peltier marbles which Gropper was selling. https://books.google.com/books?id=y17ilneaDCAC&pg=PA274