★Showa Retro Cookware Pyroceram Casserole with Handles - 6-person capacity ★Simple design with no pattern (rare) This is ultra-heat-resistant glass cookware developed by Corning, Inc. of the United States and sold by Asahi Glass. However, although the outer box says Asahi Glass, the leaflet says Asahi Glass / Corning USA joint venture, Iwaki Glass, so it's unclear. There is "USA" written on the bottom. Pyroceram Features: ● Withstands sudden heating and cooling, even over direct heat. ● Versatile - can be used for boiling, baking, frying, stir-frying, cooking rice, and more. ● Excellent for microwave use as it allows microwaves to pass through easily. ● Serves three purposes in one: can be brought directly to the table, eliminating the need to change dishes. ● Good heat retention, keeping your dishes warm. ● Can be cooked over low heat, saving on gas and being economical. ● The hard, smooth surface does not absorb odors, stains, or scratches, so it doesn't transfer flavors and preserves the taste of your cooking. Inner diameter: Approximately 21cm Depth: Approximately 9cm Believed to be from the 1970s. The dish itself is unused, but the outer box has stains and tears. For those who love Showa retro items! ※ Please state your desired price in the comments. Thank you for viewing.