The Fire King Green Jadeite C Handle Diner Mug is a vintage coffee cup made of glass with a mid-century modern design. Featuring a round shape and a glossy finish, this original piece is from the Fire-King product line, manufactured in the United States during the 1950s. The mug is signed as "Fire King" and has an American theme, making it a unique and collectible item for both unisex adults. Care instructions recommend hand washing only, ensuring the longevity of this classic piece of decorative cookware.Block Letters