A marked Danish interest in industrial heritage did not manifest itself before the 1970s, but much older initiatives do exist. Especially if we, rather than seeing the museum as a retrospective institution, define it as an institution collecting contemporary documentation, possibly for future reference, then the Kongelige Modelkammer (Royal Chamber of Models) at Holmen (the naval dockyard) is such a museum. Modelkammeret was established in 1670, presumably in connection with the development of domestic ship-building skills, as some of the models were used to guide the ship carpenters in the building process (Rasmussen 2002). Today, this collection forms part of Statens forsvarshistoriske Museum (Royal Danish Arsenal Museum) and comprises approximately 640 models of for example ships, ship ornaments, and various types of machines. This collection is supplemented by an extensive archive of drawings, dating back to the 1620s, which is stored at the Danish National Archives.