The Homer Laughlin Fiesta Cobalt Blue 1986 Set of (4) 3 1/2" Coffee Mugs are vintage pieces from the 1980s, featuring a round shape and a glossy finish in cobalt blue. These art deco style mugs are made of stoneware and have a capacity of 13oz. Machine washable for easy care, these original Fiesta Ware mugs are a charming addition to any home, suitable for all occasions. Made in the United States, these mugs bear the impressed backstamp of Homer Laughlin, known for their quality pottery production.