A rare "flat bottom" D-handle mug from Fire King. This style, with its flat bottom, is also known as a "shaving mug." Compared to the standard D-handle mug, fewer of these were produced, making them highly sought after by collectors. Manufactured by Anchor Hocking from the 1950s to the 1960s, it is stamped "OVEN Fire-King WARE" on the bottom. It features a glossy jade color and a plump, thick form, and is a masterpiece that conveys a gentle warmth every time you hold it. 【Fire King】 Fire King is a brand of heat-resistant glass manufactured by the American glass manufacturer Anchor Hocking from 1942 to the late 1970s. Fire King is an American glass manufacturer with a long history. We carefully select and offer particularly popular vintage Fire King items. Fire King products, with their heat-resistant design and unique charm, not only brighten up your kitchen but are also highly valuable as collectibles. Please add them to your home decor and enjoy a comfortable atmosphere. Please note that slight variations in the milk glass, such as streaks, white spots, and hairline cracks, are inherent in the manufacturing process.