Roberto

4 hours ago, Cody Reynolds said:

Roberto love your collection i dont care really if they have value to someone else I think their cool as hell and id buy them like people buy cutlet

 Thank you - I know people who go crazy over these mistakes.  I don't go crazy, but I like them, just as Chad says, for their historical value!

However, if they are prized marbles (we know which ones), or not prized, but that include unique and particular features, I think the value can rise quite a bit. Then, the matter can be subjective.

Some Cairo Novelty errors, from excavation, followed by Ravenswood and DAS

52 minutes ago, akroorka said:

Image #4 and #5--is that a true Carnelean? Pretty cool!

 

I think it is a real cornelian, since it is not very 'special,' but I have never researched these things

Personally no, unless they have truly intricate reasons, or yes, a chemically altered aspect. So, very few attract my attention.

the first one that follows after the group has an opalescent appearance (labradorite), with beautiful bluish reflections

Today I am wearing this..

Heaton

Akro - 1 inch

Akro, imho

minimum value

I once found one here in Italy with a glass similar to this one. It was part of an imperial group.

Yes for the first two, I have a bit of doubt about the last one....seems imperial

X2

Correct

9 hours ago, Alta said:

Grazie a entrambi. Avete qualche idea su cosa potrebbe essere? 

If it weren't for the measurements being so large, I would (perhaps) have attributed this to a 'Peltier Boyce second run 2001' cat's eye, weak, but those only reach a maximum of 0.669 (17mm) or 0.708 (18mm)

I think it's a European marble, (perhaps) made in France? 

They probably made similar marbles, but I'm just guessing...

Some images of a type of 'Peltier Boyce second run 2001', with a coloration similar to the op

Not whispler, even though it might have a weak, similar structure. Also, I assure you it would have been much more bubbly than this.

11 minutes ago, IowaMarble said:

Yes, that is the melted pontil that I was referring to. I have heard some collectors also call it a “belly button” pontil, but I believe melted pontil is the correct terminology here, although admittedly, I am far from being a glass artisan.

Ahaha, I had never heard this term "belly button", strong!

Thanks again, Chad, for confirming it

13 minutes ago, IowaMarble said:

100% an American handmade marble from one of Leighton’s many Ohio based business ventures. Note the patented melted pontil. Commonly referred to as a “Navarre” by collectors, although it would be very difficult to prove that it actually came from Leighton’s Navarre factory.

Thank you! I just wanted to point out that you can see a ring-shaped pontil, typical of Navarre.

Video..

This marble of about 0.708 inches (18mm), with obvious fire damage, I got some time ago from a guy who claimed to have found it in a junkyard.

Now, it was claimed to be MFC, but nothing for sure, any opinions?

Here is the boy's statement: "i dug this from an old land fill . Plymouth NH jul 2017 Approx 3-4 feet depth. Also pulled out a bunch of benningtons and mib shards. Land fill was from a massive fire burned 12 homes. Late 40s."

"The soil composition wat predominantly ash/charcoal. Almost all the glass in this horizon was melted. I had to dig through this to get to the pre 1900 dump"

I took some photos and videos,

22 minutes ago, IowaMarble said:

Un'altra bella Leighton "Navarre"! Grazie per averla condivisa, Roberto! Questa discussione contiene delle vere e proprie chicche per gli occhi americane d'epoca!

👍💪

No Vitro conqueror

Not imperial, In my opinion, they are both Akro

Vitro

With reference to the second photo, it could be Pelt, but I cannot say for sure here

Let's see other opinions...

Ravenswood-

That metallic could be an accidental deposit that occurred during production. It happens with many mibs