This is a Fire King Jadeite Extra Heavy Mug from my home collection. I purchased it directly from the United States. Jadeite Extra Heavy Mug ■Size: W11 x H8.7 x φ8.5 ■Markings: OVEN Fire King WARE Circa 1950-60 There are some minor scratches, but it is in good condition for use. Fire King is a tableware brand manufactured by the American Anchor Hocking company from the 1940s to the 1970s. Please understand that this is a vintage item before purchasing. Variations in the glass during manufacturing, color unevenness, hairline cracks, white spots, slight staining, small scratches, metal marks, and distortions are characteristic of milk glass and are found in most items. In addition, there may be scratches and deterioration lines due to aging and storage. These are characteristics of vintage items, so please understand this before purchasing. Fire King fireking fire king Jadeite Anchor Hocking Jade Green