I have a nice, smooth stoneware pot, 10″ high, 8″ wide, 3 1/2″ mouth opening, and 4″ foot. It has three rounds of green shades circling the pot: soft dark green (top quarter), verdigris (middle quarter), and sage (bottom half). It is marked on the bottom with AYC (or possibly AYe) MCSP. Can you identify for me? Is it anything of vaue? How much? Thanks! tantecarol