Messenger Buoy; Message Buoy; painted red and white. The buoy itself is a round copper ball with one eye on one side and three chains on the other; to which a watertight tube is attached. This can be opened and contains a blue aniline pencil and a piece of rolled up parchment in a holder.; Willem I Frederik (King of the Netherlands); L.J. Lef鑒re (mentioned on object); The Hague; 1880 - 1885; copper (metal); brass (alloy); cork; pencil; parchment (animal material); h 47 cm x d 27 cm