Many years ago Kristian H. Nielsen, the director of the Centre for Science Studies at Aarhus Universitet in Denmark, posted a video to Youtube from a film of the Smith-Putnam turbine in Operation. He has graciously provided a copy and I am posting it here.
Film of Smith-Putnam Turbine in Operation
Gabriel Altman has also digitized a film in the archives of the York County History Center. It is a different film but is of much better quality than that above.
