33mm / 1.35 inch clear marble

[COVRSWAP]

Hi all,

Any ideas on this clear marble? A y shaped crease on one side and a green taint to the marble. 34.4mm in diameter. &nbsp
 

any ideas on production method and age? Assume not collectible as no colour?

[Meep]

See if it glows under UV. I have one that does.

 

[Melissa]

clearie a/k/a industrial marble

[COVRSWAP]

Thanks.

[Alan]

Industrial sphere, not a marble.

[akroorka]

Industrial marbles/spheres were used to polish a variety of items that needed to be touched up and quite frankly, polished. 
This included many varieties of metal as well that needed a final round of polish to get to the final sales. 
This is a bigger one, I am familiar with the 7/8” or the ¾” ones and these were called “Railroad” marbles for some reason that I may have forgotten.

There may have been an accident that spilled these on the tracks somewhere.
Marble—On!!
 

[Ric]

This reminds me of one of the spheres that Corning used to use in fiberglass production - don't know if they still do. Whatever it is, it has no collectible value.

[Tommy]

Looks like sling shot ammo to me ....

[COVRSWAP]

Thanks all.