The Fire King Kimberly Diamond Coffee Mugs in Blue are a set of 2 vintage American-made glass mugs from the Fire-King product line by Anchor Hocking. These round, mid-century modern mugs have a capacity of 8 oz and feature a decorative handle design with a matte finish. The blue color and America-themed pattern add to their collectible appeal, making them perfect for all occasions. Made in the United States in the 1960s using milk glass production technique, these mugs are a unique and stylish addition to any coffee or tea collection.