a vintage German ceramic flask or bottle with a flip-top and wire hinge lock, featuring an illustration of Oldenburg Castle (Schloß Oldenburg).
Origin: The bottle is likely from Germany, by Altenkunstadt, a known producer of such collectible porcelain items.
Design: It's made of fine porcelain with a black-and-white artwork depicting Oldenburg Castle, often used for commemorative purposes.
Features: It includes a porcelain stopper with a rubber gasket and a wire hinge lock for sealing