This is a ferry for transporting trains. It is designed by Cony, there are 1:160 and 1:250 two scale versions. There is another railway ferryboat paper model "Railway Ferryboat Hvalpsund". Below is the actual photos of the ship:
It was built as a steam ferry in 1921 and sailed on the Little Belt, Little Belt until the bridge was opened in 1935. Then the ferry sailed at Elsinore-Helsingborg-crossing. In 1952 the ferry was heavily converted to diesel power with modern look, the ferry has the picture ovefor. The ferry sailed at HH crossing until 1974, when it was scrapped after an accident.
You can download this ship paper model from here: Railway Ferryboat “MS Dan” Free Ship Paper Model Download