The Marker Roundhouse is a true classic; only 34 of these vessels were built between 1934 and 1947. In 1931 the Bootsman family on Marken stood at the cradle of the development of a new type of ship for the fishing industry: the MarkerRondbouw. Despite the closure of the Zuiderzee by the Afsluitdijk, the Markers were not discouraged by this, they defied the closure and continued fishing. This ship was made of riveted iron, 10 meters long and 3.4 meters wide, had a full, high head and was built round like a barge. The first Markerround-build came into service in 1934 as MK75, this ship did not yet have an engine, it was only 12 years later when the ship was sold to Urk. At this moment the Netherlands has 7 MarkerRondbouw that are original or restored.