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.
Tunnelbohrmaschine Wienerwaldtunnel. Selbst aufgenommen Tunnelbohrmaschine beim Westportal des Wienerwaldtunnels own assumed Stoascheissacommons Tunnel boring machines Wienerwaldtunnel
Page 2023 Free-images.com. All images are Public Domain