Some opinions?

[Eduardo]

If you read the papers that i posted on the forum yesterday , you will understand that Chinese glass is often recycled glass and thus can have poor quality glass in the firing as old bottles and the like all get re-cycled , also could be the same as dave gary said above, which was all covered in the papers ............

I think can be this reason...only this can be.
I do not want to appear innocent, again, the bathroom was redone, I was asked to tile bathroom again, I was paid for,but,The question that remains, until I saw the article yesterday.

 

[AliGage]

Have you got any other pictures from distance?

I haven't read DPF's post yet but looks like impact shelling to me. What's the walls construction? and what's the other side of it?