This is a vintage collectible Anchor Hocking Fire King Milk Glass Baltimore Oriole and Blue Jay Birds coffee mug. Made of white glass, this original coffee mug features a bird character design that is perfect for bird lovers. With its durable glass construction and retro design, this mug is ideal for enjoying both hot and cold beverages. It is stackable, oven-proof and made in the U.S.A. Coffee mug shows the usual signs of wear with a little staining, but overall in good condition. The colors are still bright and solid. The inside of the rim has some very small flea bites and the outside has some imperfections to the glass that I believe have been there from manufacture. A collectible piece, this mug is a great addition to any kitchen or home decor collection. (BC-EP)*