This is a great Sears Ironstone China Octagon Amber Chop Plate measuring 12 inches across on the flat edge and 12 1/2 inches point to point. The plate has a black edge with raised bumps and a beautiful shade of Amber. This is a discontinued pattern made by Sears, Roebuck and Co., item number 4567. The plate is marked on the back: "Oven proof, Ironstone, Made in U.S.A., Dishwasher Safe, OCTAGON AMBER, 4567. It is in excellent condition with the visible marks being under the glaze.