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.
Foundations for highspeed selfcontained engine New Catechism of the Steam Engine . Scans from 'New Catechism of the Steam Engine' Steam engine foundations Highspeed steam engines
Page 2023 Free-images.com. All images are Public Domain