This set of 2 vintage Corelle Stoneware Periwinkle Light Blue Coffee Mugs Cups features a classic round shape with a beautiful periwinkle pattern. The mugs are signed by the backstamp and made of durable stoneware material. With a 3-inch diameter and 4-inch height, these mugs are machine washable, microwave safe, and dishwasher safe for easy cleaning. Perfect for all occasions, these original Corelle mugs from the 1970s are a timeless addition to any kitchen or dining collection.