This set of 4 vintage Corning Blue Dusk coffee cups from 1994-97 is a beautiful addition to any collection. These round, 10oz mugs feature a floral design in a glossy blue finish, perfect for all occasions. Made of ceramic and featuring a fused glass production style, these microwave-safe cups are marked with an impressed backstamp and weigh 2 lbs. Made in the United States, this original set embodies the charm and quality of American craftsmanship from the 1990s. Highly rated experienced glass shipper.