penumbra
Imperial Masterpiece
I am pretty familiar with that glaze. It can go from deep blue to purple depending upon a slight difference in temperature and kiln placement.That two tone purple looks very royal blue/purple to me, really love the glaze on the first one.
It is always beautiful regardless of color and it is pretty unique in a purple glaze in that the finish is mat. The other purple glazes I have used are always glossy and I prefer mat in most instances.