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.
Peine lime kiln. Peine Peine lime kiln hathitrust org id wu page Wedding's basic Bessemer process Hermann Wedding Custom marker PDUS PD Thomas converter Uploaded with Lime kilns Steel production in Peine
Page 2023 Free-images.com. All images are Public Domain