The unbelievable happend. I was given permission to scrounge this dumpster ! I have always been told that even thought the material is going to a landfill, because of the liability issues, I can not retrieve anything. Which is often followed by the sooner I'm off their property the happier they will be. these are the porcelains that I got from a visit last month. They are all 10 inch OB but check out the colours! I also got a string of six Sediver 10 inch glass discs, that at first glance looked the same. There was a 10,000 lb; 15,000 lb; 20,000 lb; 25,000 lb ; rated discs - all in the one string.