Ric

I'm not seeing an American marble.

Reminds me of Akro but I think it's not an American marble.

It looks Transitional to me - pretty gnarly cut-off for MFC, IMO, maybe Japanese?

Nice job capturing the opal glow. It looks mostly Akro to me.

It's really different. I can't wrap my head around the structure from these photos. Look a bit like an Imperial (Asian) type with a big fold in it.

Yup, typical Rainbo.

I think this one may not be American.

The first generation we call "Black Line All Reds". Those without a black line (like yours here) we just call newer style All Reds. BLARs started around 1959 and NSARs started around 1969 or so, I think. Marble King actually made some that can look very similar. As for the color variation, different glass, different day, temperature, humidity, etc. etc. BLARs . . .

@disco005 Marbles always look their best in good sunlight and you really took advantage of it. These are great photos of a nice variety of Akros! Which is your favorite? 😄

Cool All Red (newer style - no black line). Vitro made tons of them, literally. These are hybrids of blue and green. They are less common than those with only blue or green, but they are not too uncommon. You can find hybrids with other color combinations too.

@shiroaiko I had never seen the "Rupert" box before - it's very interesting. I imagine a child would be happy to get that as a gift. Thank you very much for posting it! The marbles in both boxes are very nice. The blue marble up front in the group shot of the "Rupert" marbles looks unlike the others to me but it may just be the angle. I really like the paper applied to the cardboard marble slide boxes in all of these sets! @Al Oregon Great additions, as usual. What do you think of the marbles showing in the second set you posted? They are obviously very different than those Aiko posted - they appear to be wholly machine-made.

It's hard to see detail and I don't see any blue either. I think you should spend a little time trying to improve the quality of your photos. You have been cropping them much better though so thanks for that! But for some reason they just aren't as clear as they could be. I would take some test shots situating your camera a few different distances from the marble both with and without 2X zoom (if you have it). The other really important thing is to be sure your camera is absolutely still when you take the shots. A tripod of some sort is best but I have seen folks just rest the camera firmly on something or set a phone camera on a can or something with the marble next to the can beneath it, etc. You will likely have to crop them too so you can see what the final product would look like when you upload it. The other important thing is lighting, you need to make sure that the front of your marble is not shadowed. See how the shadow in these shots is sort of in front of the marble? Try to get it more beneath the marble so the surface you photographing is illuminated well. Just try a few different things and see what works best. It may take some effort (trial and error) but once you get it figured out you can just keep doing the exact same thing and your photos should improve considerably. 🙂

I'm leaning Champion.

And yes, they are old pre-WWII marbles.

Do you see opalescence in that Flintie (aka Fire Opal)?