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It was interesting on how they got the colours by adding different elements.
I can't remember which one did what. But the ones that started out with pink eventually turned blue by spraying water on it. Absolutely fascinating. It didn't bother them if they got it wrong they just put it in a bin to be melted down again. They had only one original piece from the Bristol Blue Glass co. And that was worth £9000. This company was started in the 90' s and all their pieces are signed. I have about 20 pieces of blue glass but I was sadly disillusioned when they said they would all be fakes!