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.
. . . en Illustration to the book Vlkerkunde by Friedrich Ratzel Friedrich Ratzel Dmitri Koropchevsky Vlkerkunde St Petersburg author PDRusEmpire Vlkerkunde translation to Russian Volume Illustrations
Page 2023 Free-images.com. All images are Public Domain