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.
Fabmacklot. Darf Macklot in Stuttgart Scanning physical book from the University Library of Frankfurt am Main Germany Friedrich Arnold Brockhaus Friedrich Arnold Brockhaus De book leaflet PDold
Page 2023 Free-images.com. All images are Public Domain