Like so. People have their opinions on polishing...This marble was a solid core Leroy helped me out with (some people might call it something else) but the point is it looks way better now than it did before. Leroy had quite the knack.
Condition looks pretty rough but a couple are interesting. With the glass marbles just be careful with hot/cold change of temperature, they could fracture. The China's look clean enough I'd probably just leave them.
But are they Shades of Deep Purple? lol couldn't resist.
Yeah so purple makes perfect sense for Navarre. I'll stick with my original guess on the top one
Something looks wonky with that Lutz, a re-melt would be my guess.
The peppermint swirl (red,white, blue) in the group shot also looks a bit suspect in terms of the reverse twist and number of red bands.
by manufacturer mainly. Although sorting by pattern (patches, swirls, flames), or era (Handmade, transitional, machine made, modern) might make sense for some people. Same with color combos, or Country of origin (German, Japanese, Mexican, Dutch)