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| Antiques: Porcelain more precious than gold in 17th century Pittsburgh Tribune-Review At the same time, another scientist with the long name Ehrenfried Walther von Tschirnhaus was working to discover the secret of the other treasure, porcelain. Tschirnhaus and Bottger were told to work together, and porcelain was finally created in 1713 ... See all stories on this topic » |
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