Q: My mother purchased this 6-inch cobalt plate in the 1950s. She was told it might be from the Tuileries Palace, but I doubt that. Can you tell me how old it is?
A: This is a mark used by Sevres, a French porcelain factory outside of Paris, from 1845 to 1848. The number "47" in the mark indicates your plate was made in 1847. The symbols in the middle of the mark are mirror images of the intertwined letters "P" and "L." Some Sevres pieces made for royalty are marked with a destination mark. The Chateau des Tuileries has its own destination mark. We don't see any indication that it was made for the Tuileries Palace.