Transport Sled for Iron Ore (IMAGE) University of Gothenburg Caption This is a transport sled for iron ore exhibited in Mullhyttan in Western Närke, at the original location of the mining peasants’ blast furnace, in use 1640–1870. Credit Photo by Linus Karlsson Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.