Sorry for the low quality photo.
This is a marble I found hunting artifact at the river. It is clear, translucent I guess would be a better term.
The image seen through the marble is inverted if that helps. I don't think it is old because I don't see any swirls or break points. I don't know much about marbles but thought this was a cool find and I have not seen anything like it. Any ideas?
On the contrary, most diggers I know have dug up partially intact labels. Some even seem to fossilise to the glass. The less fortunate ones deteriorate almost as soon as they hit the air and dry, as...