Nice vintage Arts and Craft Large shell dish with brownish, yellow glaze on the top and dark green glaze on the bottom. It is the shape of a large shell with rib lines and variation of glaze color. It is very unusual and was purchased in the 80's. The bottom has a mark and I suspect that it came from an English Ceramic Place. It is in good shape except for a tiny chip shown on photo 8. It measures 12" wide by 6" d and 2." h.