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.
Kurs rzeczywisty. course of ship draw created by Narmo using Inkscape created Oct Narmo released in the public domain by Narmo Kursrzeczywisty svg Maritime navigation
Page 2023 Free-images.com. All images are Public Domain