This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
The Steam Turbine Fig View of the Gearing in 'Vespasian.'. en View of the Gearing in 'Vespasian' figure from The Steam Turbine archive org archive org not attributed PDold PDUS Uploaded with The Steam Turbine Steam turbine ships
Page 2023 Free-images.com. All images are Public Domain