Our classic now with a stamped capital city name Berlin. Classic pop pop/steamjet boat/candle boat with recoil drive. “The rattle, putt-putt or puff-paff boat is a toy boat with water impulse drive (steam jet engine, pulsed waterjet). The simple motor does not require moving parts such as pistons, valves or wheels. At the stern of the boat, two pipes stick out side by side and in parallel below the waterline. Water is sucked in and expelled through the pipes. The characteristic rattling sound of the boat is not caused directly by the evaporation process, but by a special design of the evaporator: The top is made of spring steel sheet as a crackfrog, which jumps back and forth during rapid pressure changes and produces a cracking sound in the process.” (Source: Wikipedia) The boat then sails on an unpredictable route. Material: sheet metal Size: approx. 14 x 6 x 2.5 cm