From 1997

From 1997 to 2007 green underglaze shield mark with F for Duke Franz of Bavaria. Despite all the different representations that the mark on the underside of the objects has undergone over time, it always remains recognizable: the symmetrical shape results from two concave sweeps upward, the convex retractions on the sides, and inward and outward sweeping lines to the top downward. The field is filled with a diamond relief.