The encompassing "heavy press program" is an interesting bit of history: https://en.wikipedia.org/wiki/Heavy_Press_Program https://en.wikipedia.org/wiki/Heavy_

The encompassing "heavy press program" is an interesting bit of history: https://en.wikipedia.org/wiki/Heavy_Press_Program https://en.wikipedia.org/wiki/Heavy_Press_Program Several of these presses have been designated by the American Society of Mechanical Engineers as historic landmarks and I suspect the HN audience may be interested in the other landmarks: https://www.asme.org/about-asme/engineering-history/landmarks https://www.asme.org/about-asme/engineering-history/landmark... I've been trying to visit as many of these in person as I can and it's been a very satisfying hobby. Some portion of them are on private land or don't have standard visitor hours, but my tip is group tours are easiest to arrange for the most reticent property owners, and there's almost always an ASME chapter at a nearby university looking for industry mentor connections. Plus going on a field trip with students is a special joy :)