Error Marble

This marble is an error marble because it is flat on two sides...
The only picture I have been able to upload which shows quite a big slice of one side of the marble flat and the other side is also flat but smaller...

Interesting...I don't see a lot on error marbles and though I am a newbie at the marble thing because I collect bottles, coins, etc...& some collectibles, I have never really seen a marble with flat sides...otherwise it is flawless lol

Interesting one. That flatness does happen once in a while. Quality control on Japanese and Taiwanese cat's-eyes was not always the best so you do find some errors.

Hard to let the oddities go!