Alan

I admired his work and the skill that made it real. An innovative, creative approach with precision to back it. He will be missed and we are poorer for losing his talent.

"Mangle mint". You get six Internet points for that. Let history reflect that you invented it!

Well, if you look at it, its not a simple DI. There was a whole lot going wrong there. Its interesting that you post this because earlier this week I was on a call whose subject was (mostly): "What happens if the shears cut off more glass than the rollers are sized to handle?" The well-informed result was something like what you have pictured. Its going to tumble over on itself and get wonky in the rollers and be unable to round itself in any real way. I suspect you have that, or the shear cut 2 ingots not of the same size (essentially skipped half a beat), or the single ingot picked up a small piece of hot scrap and they basically "fell down the stairs" through the rollers.

Diameter?

Vacor for me.

MK

It has every appearance of being an agate. Surface and subsurface damage.

There is no such thing as Akro "same run". "Same run" has become a whimsical corruption of "same cane" from handmades. Seemingly to denote rarity and collectability. Akro ran standard dedicated production to a well-known palette of color combinations and types (corkscrews, patches etc). They filled orders taken by salesmen ordered on standardized product sheets by retailers. Changing glass in an otherwise well-running pot was unnecessary until the pot lining degraded and began mixing with the glass. So one machine could and did put out a popular type and color combination for many months - again, until the pot degraded. The entire idea of vintage marble production was to find a successful design and then produce it as cheaply as possible (very small fractions (~1/20th) of one cent each) as fast as possible 24 hours a day. Then, in Akro's case, ship 2-3 train boxcar loads twice each week. Get that machine producing an exact design and color combo and make many hundreds of thousands of them - cheap. Then rebuild the pot, lather, repeat. Sameness and consistency was the goal for each machine and operator. The Akro Agate production floor was quite large and sustained quite a few machines, not just a few. We know this because of statements made by Akro employees and proven by the layout of water drains on the production floor slab that went from the machines via a french drain system to the waste outflow. (Marbles were found in some of the french drains, including some weird oxbloods). I think that the "same run" idea was born of Facebook denizens who have not studied vintage machine made production and have dragged a factual handmade name to a romanticized mass-production idea that isn't supported by fact. Vintage machine made manufacturing was very rarely experimental. At 1/20th to 1/30th of a cent each, a manufacturer cannot afford much experimentation. The same is true of filling retailer orders. If you ship me marbles that look much different than what the salesman showed me in the (very consistent) Sample Case, then I'll tell you to take them back.

Appears to be a game marble.

It doesn't ring my Ravenswood bell.

MK. Not oxblood. Note that MK oxblood, when it appears, is incidental oxblood.

That is a Pelt pattern.

Pelt with an air bubble pop.

Impact damage.

I've never understood that agate makers specifically chose raw agate with much specificity beyond fissure-free to avoid fracturing during grinding.

x2

What do you mean by "type"?

It is an agate (not glass).

Its just a cold shear on a machine made. It looks more like modern glass, lacking any other identifying traits.

I too have not heard of a "Green Jewel".

You have it in hand and I don't, but trace the seam gap around. A flopover ingot happens when the single glass ingot is sheared and folds over on itself as it enters the rollers. Not an uncommon occurrence.

That looks like Pelt glass to me.

Looks like a flopover single ingot. Not a Moonie. The seam doesn't appear to go completely around the circumference of the marble.

I thought that I would continue my earlier thoughts on Jabo with a focus on investor runs after a fairly long discussion with a person who was a regular on the Tribute runs and reasonably knowledgeable about the Joker runs. Bear with my train of writing because the conversation was far-ranging and I kept tugging it back to the OP's original point and my notes follow that conversation serpentine flow. The basic characteristic of the Joker runs was that the investors had specific ideas of what they wanted the result to (roughly) look like and they specified that to Dave M. The ran a black aventurine experiment that went well. "They did their own thing". Some use of dark colors made the run go somewhat dark with results being satisfactory and some less so. The Tribute runs were different. The investors gave Dave M. leeway to choose glass. Dave started with showing color samples with two prior visits with some of the investors well before the run. The discussions in total took up many hours. (Most of those discussion have been recorded and I am trying to get access to those to transcribe them. They are already partially transcribed and I understand that the editing is very slow and, very time-consuming (even automated)). All of those discussion were about glass, glass choices, glass color palette (color wheel) and I understand that drawings exist from those discussions. Also, tank rebuild process photos. The Tribute runs chose (in some cases) a white base glass of Fenton "Hobnail White". Some of the in-the-moment choices for glass by investor individuals were added. The red glass was "fussy" and could easily be problematic ("It does what it wants to"). Sometimes they had to change the red out. (MK sometimes had problems with that red glass and the problem was not easily corrected despite considerable time, effort and consultation with other glass makers). The Tribute run used roughly $10-20,000. of glass in a 24 hour period. There was a lot of breakage in the Tribute runs. That breakage was trash. To your question of consistency in the run and the ability to ID: If the run kept the same base glass, the progression in the run can be seen if you look at a large enough sample set. Hope this builds insight. Alan

I don't see the definitive clear (of which there should be quite a lot) and the whispy white.