In 1551 ten masters arrived. Towards the end of the decade many French and Belgian Walloon gunsmiths arrived at Jaders Bruk. A thoroughly drawn map from 1642 show approximately thirty water powered smithies on the islet. However, already in 1617 we know there were a saw mill, a grinder and a mill in this place. The last smithy was at work as late as 1929.
Today remains only a larger agriculture.
There is much, much more to tell about Jaders Bruk.