I ended up with exactly 50 of these 5/8th mibs in a somewhat older collection. An odd random number but almost makes me think that was a "count" in a original package for this batch, arriving at that total after sorting.
They very much resemble Vacor type. They were all in great condition which I thought was unusual.
I did not recognize the pattern in the Vacor named marbles, so I thought maybe they were an older version or discontinued. Having searched a lot, I give up.
I have found them elsewhere but either ID-ed wrong or not ID-ed at all.
Thanks so much.
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