Steam Engine Driven Model Boat Swing. For sale is this very rare model of a boat swing from the German Company WK Wilhelm Kraus , when in motion the 2 boats swinging up and down.The model is in good condition for its age. Dimension : 140 mm x 80 mm x high 140 mm. See photos for more detail. Feel free to contact me for further information/pictures etc. And I will get back to you ASAP. All items are sent as Registered Post. The item "Steam Engine Driven Model Boat Swing (Schiffschaukel) WK" is in sale since Wednesday, September 5, 2018. This item is in the category "Toys, Hobbies\Powered Toys\Steam Powered". The seller is "steamtoys44" and is located in Gordonvale, QLD. This item can be shipped worldwide.