A model of the shipyard Skeppsholmen where the famous warship Vasa was built. Nowadays, this is a peninsula known as Blasieholmen in the inner city of Stockholm. It was a centre for the maintenance of naval ships since the mid-16th century. After 1618, the Crown concentrated on building new ships here. Master Henrik recruited carpenters as seasonal labour from the Netherlands to increase the peak staff to 300, thus, making it one of the largest employers in the then Sweden. Dutch design and construction dominated the yard which often caused problems. Not only the Swedish and Dutch carpenters spoke different languages but also their units of measurements differed. This caused symmetry and other problems in Vasa’s design.