Authentic vintage Fire-King coffee mug made by Anchor Hocking in the 1960s–1970s. This mug features a soft avocado green exterior, white milk glass interior, and black stackable base—an iconic mid-century modern colorway. Marked on the base with the original Anchor Hocking Fire-King stamp, confirming authenticity and U.S. production. Perfect for mid-century modern kitchens, Fire-King collectors, or vintage glassware displays. Condition: Good vintage condition with light wear from age and use. No cracks or chips.