I love old and odd tea sets although I don't have much information about them. One says Macau on the back, the others say Bavaria Schumann Arzberg Germany and Winterling Schwarzenbach Bavaria Germany on them.
I recently came into possession of the dinnerware from Yamaka China (Antique Rose) that I remembered using as a child! That will sit next to the Gildhar set. :D I need more cabinet space...
