Pair of plates that look like Capo Di Monte

I have a matched pair of plates that look like Capo Di Monte but the makers marking  is not one of their marks.  It is either a blue N or Z depending on how you look at it.  Both plates are marked the same way.  They are really interesting scenes and colors, the outter edge having 12 portrates and the inner plate having scenes with people. They are approximatly 8 1/2" in diameter.

Excellent