ISERLOHN, a town in the Prussian province of Westphalia, on the Baar, 17 m. W. of Arnsberg, and 3o m. E.N.E. from Bar men by rail. Pop. (1933) 34,153. Iserlohn is a very old town, its gild of armourers being referred to as "ancient" 1443. Both in the town and neighbourhood there are numerous foundries and works for iron, brass, steel and bronze goods, while other manu factures include wire, needles and pins, fish-hooks, machinery, umbrella-frames, thimbles, bits and furniture.