WOW ! It's awesome that your marbles have all been sorted into what looks like what type and manufacturer(maker)
What do you guys think. I see endless hours of sorting in this collection.
The one in the middle is a MK. The colors on the seams mirror each other. Pelts have what I call the "flip-flop"
The colors are opposite of each other and the seams.
These are hard. First one looks Foriegn to me in the 4th pic. Second one I think is Vitro be cause of the base glass but the seams look like Akro. The 3rd one looks MK to me. The ribbons are to wide to be a Pelt.