Interesting that it was a working plant for almost 500 years and still has usable drop hammers. That 12K hp steam engine was added in the early 20's and Very impressive even back then. If I ever get back over there I'm gonna go see that! I remember seeing one of the salt mines and the equipment they used back at the turn of the 20th century but this is impressive.

Thanks Altair, nice rabbit hole dive.

PJ