Both have the Villeroy & Boch backstamp. The dish on the left shows the Chateau de Septfontaines, Luxembourg, built in 1783 by Pierre - Joseph Boch, the founder of Villeroy and Boch, today a guesthouse of the company. The other dish is with our compliments Villeroy and Boch Australia Tableware Division and shows the Tower dating back to the 10th Century, part of a former abbey, the headquarters of Villeroy and Boch since 1809