【Product Description】 Fire King is heat-resistant glassware manufactured by the American company "Anchor Hocking" from 1941 to 1986. Fire King was widely used in American homes and restaurants at the time, and its durability and the variety of patterns (over hundreds of types) have made it a favorite among many collectors in Japan and around the world. This product is a diamond-patterned mug manufactured around 1960-1976. 【Condition】 There is some peeling of the diamond ♦️ print on the mug (Photos 1-3) and a *defect from the molding process (Photo 7). *A space created when air remained inside the mold during closing, preventing the glass from flowing in. Otherwise, there are no other noticeable signs of aging.