This is a rare Corning Ware Le Romarin casserole dish with lid, stamped A-10-B, from the Wildflower product line. It was manufactured in the 1970s in the United States using pottery production technique. The dish is square-shaped, with a botanical pattern on a glossy white finish. It has one compartment and a capacity of A. The dish is made of glass and ceramic, and it is oven, microwave, and dishwasher safe. It measures 12 inches in length, 10 inches in width, and 4 inches in height.