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.
Johan Carl Krauss. en Portrait of Johan Carl Krauss cascade nl HeestersKraussHolwerdaCascadeBulletin pdf Friedrich Christoph Dietrich Fryderyk Krzysztof Dietrich Johan Carl Krauss Fryderyk Krzysztof Dietrich PDold
Page 2023 Free-images.com. All images are Public Domain