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.
Zeiss NI. de Optisches Nivelliergert auf TripodStativ en Levelling device own Gertebestand der Fa ErdbauEnglert Bad Friedrichshall Sarang sarang Levelling Carl Zeiss company
Page 2023 Free-images.com. All images are Public Domain