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.
Ernst Wagemann . en German economist and statistician Ernst Wagemann ark Robert Sennecke Internationaler IllustrationsVerlag Agence Mondial PD domaine public Ernst Wagemann Robert Sennecke Internationaler IllustrationsVerlag Agence Mondial PDold
Page 2023 Free-images.com. All images are Public Domain