Königlich privilegierte Porzellanmanufaktur Tettau (G.m.b.H) / Porzellanmanufaktur Tettau A.G.
Trade names: Royal Tettau, Hohenzollern China, Wittelsbach & Royal Bayreuth
Tettau, Bavaria
Hersteller / Manufacturer
The factory was founded 1794 and was run by a number of different owners until 1957. Since then it has been 100% owned by the Seltmann Weiden Group.
Reference: Seltmann Weiden Porcelain Marks & More Königlich Tettau
Royal Tettau, Annual stein 1979, top view 
Ink stamp, complete with decorators name. 
Ink Stamp 
Royal Tettau, Annual stein 1979, limited edition, 
Wittelsbach stein 
"Royal Bayreuth" ink stamped mark - 1902 onward . "PT" stands for Porzellanmanufaktur Tettau. 
Another transfer mark, dated 1988. 
Ink stamp mark from featured stein on left "monk". This is a later version to the mark below. 
This is the early version of the "Wittelsbach" mark. The "Hohenzollern China, Germany" part was removed, since it was in use by another manufacturer. 