Interesting marbles, Ric! I can see Al’s point about the first and third marbles being different in some ways from the center one. However, the colors in all three are a match, so I think they have the same origin. My hunch is that they are dug MKs. I have a blue/yellow/white with 2 blue vanes and a green/yellow/white with 2 green vanes. Also, a 3 vane blue, yellow, yellow with the vane placement like a “T” indicating one vane is clearly missing. My recollection is that I acquired all of these in a lot of dug MKs. These strange combinations were probably done at the end of a run when they ran out of frit in one color and they substituted with what they had available (or, in the case of the 3 vane, finished with only 3 chambers in the crucible filled.)
Sorry, I’m not at home so I can’t take photos. And, in case y’all are thinking what a great memory I have, I got the info from my book, page 33. Haha! Thanks for sharing, Ric. I haven’t seen these color combos before.